Pattern library
Costco's membership model: profit from the fee, not the margin, and how to borrow it
Costco charges a yearly fee to shop and keeps its markups low. Much of its profit comes from the fees, so it wins when members save money and come back, not when it sells them more expensive things.
Why it works
- A fee paid up front, which makes the member want to get their money's worth.
- Low margins on what is sold, made possible because the fee carries much of the profit.
- A business that wins when the customer saves, so its incentives match the member's.
- Renewal as the measure that matters, which keeps attention on value over a year.
When it holds
- Customers buy often, so the savings add up to more than the fee.
- The business can keep prices visibly lower than the alternatives.
Where it breaks
- People buy rarely, so the fee feels like a toll.
- The savings are hard to see, and the fee is all the customer notices.
- Competitors match the prices without a fee.
Where else it works
- Amazon Prime
- A yearly fee for faster delivery and other benefits, which makes members buy more on Amazon.
- Sam's Club and BJ's
- Run the same warehouse-club model: a fee to shop, low prices inside.
- Software with platform fees
- A base fee plus low usage prices, so heavy users get more value as they grow.
Where you could try it
- A marketplace or B2B purchasing tool
- A usage-priced API
- A services business with repeat customers