==== 2024-10-02 ====
Notes from https://www.barrons.com/amp/articles/costco-earnings-stock-price-4b2d3fd6
  * Costco's current forward P/E is 50.7. Its five-year average forward P/E is 37.1

Notes from https://www.barrons.com/amp/articles/costco-wholesale-gold-bars-prices-e1716043 - {published 2024-09-27}
  * Costco started selling 1-ounce gold bars last fall.
  * WSJ estimated that Costco was hawking up to $200 million a month worth of gold.