My chief complaint about the small supermarkets in urban environments is that their produce just doesn’t turn over very fast.
Especially for the larger pack sizes, if they even have them at all.
More generally, Am I willing to save 30% on bread crumbs or soap if it means buying a 6-12 month supply up-front? Yes, that’s a great ROI!
4 or 5L of milk may be a problem (unless you freeze it). But I can go through a 10 lb bag of potatoes if I could only get them fresh.