Comment by projektfu

I disagree here. Costco is now often trading on its reputation for getting you a bulk discount, but when you compare them to Aldi, or even to a larger supermarket, you're often getting things in large quantity for the same price or more than you'd pay in small quantity. This is especially true for things like cheese. Meanwhile, you're giving up the opportunity to get a superior product. In the cheese example, Costco stocks Belgioioso mozzarella, which to me is about store-brand quality. Popular because it doesn't taste like cheese. For a decent price, you can buy much better mozzarella which has some flavor. And you don't have to buy 3 lbs at a time.