While Costco may be famous for its $1.50 hot dog and soda deal and $5 rotisserie chicken, an expert shopper has revealed the groceries which are not good value at the store.
The West Coast-based warehouse chain may be one of America's favorite retailers, but don't get blinded by the bargains, one expert warns there are plenty of items you might be better off buying at your run-of-the-mill grocery store.