https://deliberatedrift.com/p/costco-the-membership-fee-lookedDeliberate Driften2026-07-06T12:03:37+00:00Costco: The Membership Fee Looked Like a Gimmickhttps://deliberatedrift.com/p/the-fee-is-not-the-business-how-costco-0a7Deliberate Driften2026-07-06T11:00:00+00:00The Fee Is Not the Business: How Costco Built a $4.8B Revenue Stream That Doesn't Behave Like Retail