Funny this post came up...I just went to petco the other day since I was desperate to feed my snake. Usually I'd drive down to Chicago Reptile House but since I didn't have my car my mom didn't want to drive there with all the road work on the way. Since I knew I would be busy later I was like okay fine petco. The guy sold me a small rat which was probably closer to a medium but yeah way more expensive...although the price of gas to drive to CRH probably balances it out. They had this really nice Betta though that I ended up getting and is now happy in his 5 gallon home. I haven't been there in years though and nothing has really changed.