How do they compare to Costco?

It was a close call, but Costco came out on top as the best deal. Both Costco and Sam's Club offer comparable prices across all departments, but noted that Costco's membership is slightly more expensive. Membership fees start at $55 annually for Costco and $45 annually for Sam's Club. Sam's Club tends to be more reliable on everyday household items and have more cashiers and checkout options making it easier to get in and out.

Sam's club has better deals

Night and day. Sams employees are much lower quality, Sams service is aweful. Prices are about the same, but sams has lower quality items in some cases. Sams is a cheap knock off of Costco. I have memberships at both, and Sams is only really good for Gas because its a bit closer to my house. If you are already a member at Costco, and you dont need Gas at Sams, dont bother...

Yeah Costco is getting stuck up , they don't treat people like customers.

As far as prices they are pretty even. There are slightly more choices in Costco. However, I really like Sam's because it's not as crowded both inside the store and at the gas station.