Sam - I - am a member of :) Well, until we just became members of Costco last week when my membership expired. Costco is closer to our house!
Still, to me they are both pretty much the same. They both sell huge amounts of everything and you cannot leave without spending a few hundred dollars!
Back to Sam's! I really liked it there. Clean, wide aisles, tons of merchandise. They sell everything from jewelry to popcorn to dish detergent. And in BULK...everything. LOL.
I love when they have samples out too, because seriously, if I am going to buy 30 tons of it I had better like the way it tastes.
Overall, its a little overkill for a household of 2 but I can see how it is useful for larger families. If you don't use Sam's you might "S"ave "A"ll your "M"oney SAM ....hahahah!