Amazon Prime vs Sam's Club vs Costco: Which Memberships Are Worth Paying For?

Published 2026-09-24

Wide aisle in a warehouse club store with bulk goods
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Amazon Prime vs Sam's Club vs Costco: Which Memberships Are Worth Paying For?

The short version: these aren't really competitors. They solve different problems. Amazon Prime ($139/year) is a delivery and streaming membership: fast free shipping, Prime Video, and exclusive sale events. Costco ($65–130/year) and Sam's Club ($60–120/year) are warehouse clubs: bulk groceries, cheap fuel, and famously generous return policies. Most households that can justify two memberships pair Prime with one warehouse club: the one closest to their house. Below is the honest breakdown of what each costs, what you get, and who should buy (or stack) each one.

The prices (verified September 2026)

Annual costMonthly option
Amazon Prime$139/year$14.99/month
Costco Gold Star$65/yearN/A
Costco Executive$130/yearN/A
Sam's Club Club$60/yearN/A
Sam's Club Plus$120/yearN/A

Prices verified on the official sites on September 25, 2026: Amazon · Costco · Sam's Club

What each one actually gets you

Amazon Prime: The delivery membership

Prime is about speed and selection, not bulk. The core value is fast, free delivery (same-day/next-day on millions of items in most metro areas), plus Prime Video, Prime Music, Prime Reading, and exclusive access to sale events like Prime Day and Prime Big Deal Days (October 6–7, 2026).

Returns are another quiet Prime superpower, when Amazon itself is the seller. Items sold and shipped by Amazon get free, painless returns (usually 30 days, refunds often issued the moment you drop the package off), no box or label needed at thousands of drop-off points: UPS stores, Whole Foods, Kohl's, and Amazon's own counters. The catch: Amazon is a marketplace, and third-party sellers set their own return terms, some charge return shipping or restocking fees, some are slow. Always check the "Sold by" line on the product page before buying; filtering for "Sold by Amazon.com" keeps the returns experience as good as advertised.

Then there's Alexa+, Amazon's generative-AI assistant. Bundled into Prime at no extra cost (it runs $19.99/month as a standalone subscription). It works across Echo devices, Fire TV, the Alexa app, and Alexa.com, and unlike the old command-based Alexa it holds real conversations and does agentic tasks: booking rides, making restaurant reservations, controlling smart home gear. If you're into home AI, your Echo speakers just became considerably smarter without you paying a cent more. Source: Amazon.

And don't sleep on the Prime Visa (issued by Chase): 5% back at Amazon.com, Amazon Fresh, Whole Foods, and Chase Travel, with no annual fee beyond the Prime membership itself. It also earns 2% at gas stations, restaurants, and transit/rideshare, 1% elsewhere. The math is compelling for heavy Amazon shoppers: $300/month on Amazon = $180/year back, which more than covers the $139 membership. Source: FinanceBuzz.

Best for: online-first shoppers, apartment dwellers with no warehouse nearby, anyone who values streaming bundled with shipping. The free trial makes it risk-free to test.

Not for: bulk grocery savings. Prime doesn't compete with warehouse clubs on per-unit grocery prices, and Whole Foods discounts are modest.

Amazon Prime (30-day free trial)
Amazon Prime (30-day free trial)
Start free Prime trial →

Costco: The premium warehouse club

Gold Star ($65/year) is the regular membership and it's all most people need: full warehouse access, Kirkland Signature private label (consistently rated among the best store brands), famously cheap fuel (Top Tier gas, often the lowest local price), plus optical, pharmacy, tire center, and Costco Travel discounts, and a free household card for another adult at your address. The return policy is legendary, nearly anything, nearly any time, which works as insurance on big purchases. For a two-car household, fuel savings alone can cover the $65.

Best for: families, bulk buyers, road-trippers who'll use the fuel savings, anyone who values the return policy.

Not for: small households that can't use bulk quantities before they spoil, or anyone far from a warehouse.

Executive ($130/year) adds 2% back on qualifying purchases (up to $1,250/year), early 9 AM shopping hours, and a $10/month Instacart credit on $150+ orders. The math: at $65 more than Gold Star, the 2% reward breaks even at $3,250/year in qualifying spend (~$271/month). Spend $500/month and the ~$120/year rebate nearly covers the whole membership. And if the reward doesn't cover the upgrade, Costco refunds the difference. Upgrading later is financially risk-free, so there's no reason to start at Executive.

Costco membership
Costco membership
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Sam's Club: The value warehouse club

Sam's Club is the cheaper entry point: Club at $60/year undercuts Costco's Gold Star by $5, with member fuel prices, Scan & Go checkout, free curbside pickup on eligible orders over $50, and Instant Savings. Plus at $120/year adds 2% Sam's Cash back (up to $750/year), free shipping on eligible online orders over $50, free delivery from the club on eligible orders over $50, early shopping hours, and early access to online savings events.

The honest difference vs. Costco: Sam's is cheaper to join and stronger on tech-driven convenience (Scan & Go, curbside); Costco has the stronger store-brand reputation and the more generous return policy. Product quality debates are endless and regional. Proximity to a good location matters more than the brand.

Best for: budget-conscious bulk shoppers, Walmart-ecosystem households, anyone who'll use curbside pickup and Scan & Go heavily.

Not for: shoppers who prioritize the Kirkland brand or Costco's return policy specifically.

Sam's Club membership
Sam's Club membership
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Head-to-head: the dimensions that matter

Annual cost: Sam's Club Club ($60) < Costco Gold Star ($65) < Sam's Plus ($120) < Costco Executive ($130) < Prime ($139). But cost isn't the ranking, value per household is.

Shipping and delivery: Prime wins outright. Same-day/next-day on millions of items is unmatched. Sam's Plus includes free shipping over $50 and free club delivery over $50; Costco's shipping is solid but less central to the pitch.

Groceries and bulk: the warehouse clubs win by a mile on per-unit prices for pantry staples, paper goods, and meat. Prime's grocery play (Whole Foods, Amazon Fresh) is convenience, not bulk savings.

Product quality: Costco skews more premium. A wider organic selection, more premium grocery brands, and the famous rotating "treasure hunt" of high-end electronics and designer apparel. Sam's Club leans value: more familiar national brands, with Member's Mark typically priced below Kirkland on comparable staples. Sources: Clark.com, Cheapism.

Fuel: Costco and Sam's Club both offer member-priced fuel that's routinely among the cheapest in the area. A perk Prime can't touch. For a two-car household, fuel savings alone can cover the membership.

Streaming and digital: Prime only. Prime Video, Music, and Reading are genuinely good standalone services that happen to come with shipping.

Rewards: Costco Executive (2% up to $1,250/yr) and Sam's Plus (2% Sam's Cash up to $750/yr) both reward heavy spenders. Prime's 5% back at Amazon and Whole Foods requires the Prime Visa (Chase, no annual fee beyond Prime). For heavy Amazon shoppers it can pay for the membership by itself.

Cancellation: Costco is the standout, 100% satisfaction guarantee: cancel any time for a full refund of the membership fee, and Executive upgraders get the difference refunded if the reward falls short. Prime and Sam's Club have standard cancellation terms; check the current policy before joining.

Who should buy, or stack, each one

Frequently asked questions

Can I shop at Costco or Sam's Club without a membership?

Generally no for in-warehouse shopping. Exceptions: Costco lets non-members use the pharmacy in many states (by law) and shop Costco.com with a 5% surcharge; a Costco Shop Card from a member also gets you in. Sam's Club occasionally runs open-house events.

Is the Costco membership fee really refundable?

Yes. Costco's 100% satisfaction guarantee means you can cancel at any time and get your membership fee back. If that's changed, it'll be on their membership terms page; verify before joining.

Which is cheaper, Costco or Sam's Club?

Sam's Club Club ($60) is $5 cheaper than Costco Gold Star ($65); Sam's Plus ($120) is $10 cheaper than Costco Executive ($130). But the real comparison is which warehouse is closer to you and which store brand you prefer.

Do I need Prime for Prime Big Deal Days?

Yes. The October 6–7, 2026 event is Prime-exclusive. A free trial qualifies if you're eligible. See our event guide for details.

Can I share a membership?

Costco includes a free household card for another adult at your address on all tiers. Sam's Club includes two membership cards. Prime sharing works through Amazon Household.

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