it is a good list for some circumstances but not for all of the time. I have gotten grocery stuff cheaper than wholesale or bulk, though sometimes not. Lately, I bought large whole chickens for far cheaper than I could get crappy chicken legs.
I would suggest research first (with food prices in mind) and then to look out for the best prices. Nothing beats serious and long term planning, not even generic salad dressing :P

for soup base, I like to bake my bones for chicken or smoke them for ham...mmm yummy