As someone who lives in central San Francisco: Costco is amazing with a cargo bike (or Waymo off-peak).

Haven't had Amazon Prime for 2+ years and don't miss it, but would definitely miss my Costco membership.

Agreed. We have two Costco's within 6 minutes driving distance, my wife visits them once a week, like Walmart and Whole Foods. We also shop regularly on Amazon. We don't buy weeks of food at a time.