We have a Costco membership and barely ever go there anymore. Basically go there to stock up on paper towels, TP, paper plates, detergent, etc.
Their Wagyu and seafood generally are top notch and they have some scotch and bourbons significantly cheaper than liquor stores. If the local butcher shop doesn’t have what I need usually I can get it at Costco. Pricing is usually similar.
A lot of the Costco stuff is actually more expensive than regular grocery stores. A gallon of milk the other day there was $3.55 compared to about $2.20-$2.40 anywhere else. Eggs are high too.
I think they have some good stuff to get people in the door that they sell at cost and then make their money on random overpriced goods because people aren’t even paying attention.
Doesn’t help that it’s farther away than most all competing stores and the traffic sucks in that part of town.