I agree except for condiments. They’re cheap enough already compared to how long they last that I think it’s worth springing for the good stuff. Duke’s Mayo, Grey Poupon mustard, Cholula hot sauce, Ken’s Steakhouse salad dressings, etc. If a bottle lasts you six months, what difference does a few dollars make?
For staples like flour, bread, canned products, OTC meds, who cares. I’ll go as cheap as possible.
We call that “parasnailing”