It's never an easy in and out quickly. And yes, I'm the primary breadwinner in the family who works a regular work schedule. I don't have frequent 2 hour blocks of time regularly to drive to Costco, shop, and get back home. My efforts are better directed at different tasks around the house that I'm much better/capable of doing at doing than my wife. And no, that's not sexist. I have different skills than my wife does. She has more disposable time with only one teenager left at home.

TLDR: Shopping there is a huge time suck. I can't believe there are so many guys who have that much leisure time to do it.