What is Costco?

Costco is a membership warehouse club retailer. The supplied material tracks its gold sales, governance structure, reselling opportunities, and shared scale economies.

• Apr 2026 - A host reported buying washers and dryers from Costco and reselling them on Facebook Marketplace for a profit.
• May 2026 - James Lavish said Costco sells $3 billion in gold annually, with 25,000 customers per month buying gold in stores.
• May 2026 - Eric Ries described Costco as a ‘spiritual holding company’ and noted it is ‘embodied in a governance fortress.’
• Jun 2026 - Sam Parr said the best predictor of long-term value for Costco was something called shared scale economies.