I do shop at warehouse bulk stores like Costco for some things. I also shop grocery store sales for other things. I also recently discovered the GFS bulk restaurant supply store and did some comparison shopping between GFS, Costco and the grocery store.
Here’s an example:
Publix: Publix had a sale on Mueller pasta BOGO (buy one get one free) for $1.59 or about $.75 cents each. (The first one you buy is .75 cents, the second one is .74 cents.) I bought 5 boxes or 5 pounds of pasta for $3.73. Without the sale, the pasta was regularly $1.59 a pound.
Costco: Costco had Barilla pasta for $1.09 per pound. They package their pasta in a 6 pack with a variety of 1 lb boxes.
GFS: GFS had large bulk 5lb bags of pasta for $5.99 or about $1.20 a pound. My overall impression of GFS was that it was more expensive than Costco with lesser quality food and in many cases, smaller packaging. We tried some of their pasta and found it to be not very good quality, compared to what we bought at Publix or Costco and it was the most expensive out of the 3 stores.
Both are 5 lbs. Buying individual packages many times is cheaper than buying the one big bag. Always compare your prices and don’t assume just because it comes in a big bag…it must be cheaper?!?