I strongly suspect it's the extra services that third parties sell through them.... | Hacker News

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		shaftway on July 11, 2022 \| parent \| context \| favorite \| on: Love Song to Costco I strongly suspect it's the extra services that third parties sell through them. Like the vacation packages, air conditioning installation, etc. We almost got a Puronics filter through them, but stopped short when we found out that it was $9000 at Costco, but $6000 through an independent installer.

lotsofpulp on July 11, 2022 [–]

Costco’s profit is all membership fees. Everything else is (in aggregate) sold at cost. This is public information in their 10-K filings.

For the hotel and travel stuff, they get a commission like other travel agents/channels.

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