The only thing costco really has going for it is the odd item that is truly on sale, dependable low prices on some stuff, and quality control. Quality control is the big one. I can't remember most of the tests now, but when olive oil was being looked at, costco was one of the two brands out of something like 32 that was actually what it said on the label. On a couple of other things as well that I remember, like honey, they had the same finding.