What is the appeal of Costco?

The parking lot is a mess, the stores are crowded beyond all measure, they have internet and solar panel sales people yelling at you as soon as you walk in, they harass you about a membership upgrade every time you shop, their app is terrible and can't do basic things, self checkout always glitches, ordering appliances for delivery goes wrong half the time, and the tire center is a shit show.

And after all the inflation, the prices aren't even that good anymore. Many items are cheaper per unit at other stores, but of course people can't do math and just assume that buying in bulk is cheaper.

Not to mention the combo pizza is gone, the food court sells fattening and unhealthy junk like hot dogs and soda, and the auto buying program is useless because dealers just give you the run around.

So what exactly is the appeal of Costco?