My local store has quit carrying institutional-sized cans. They used to have a small section of the large cans, along with big boxes of different mixes, jugs of condiments, dressings, large containers of spices, etc. While the brand name canned goods weren't too good a deal, they did carry some off-brand and a local cannery's brand that were very competitive. I'd buy the large cans, then put the food into smaller containers and freeze. Even ketchup freezes great!
But they now only carry a few main vegetables in the big cans, and those are next to like veggies in the small cans. And not cheap at all.
The last time I checked Sam's, they carried mostly name-brand large cans, or just bundles of small cans - and no cheaper than what I could buy anyplace else.
Do you find the big cans to be cheaper and where do you buy them? Liz