Costco is no different than a Sam's Club. Stuff is a bit cheaper there because of the volume they buy but things are definitely not deeply discounted. That's right about the Bose products and everything else. You can buy a home theater system there for $1500 vs. $1700 at a place like Sears. Same with furniture, food, clothing, camping equipment, you name it. It's a little less expensive but it's not like shopping at The Dollar Tree.