That's what I thought too...and then I realized that I could pull, change, and mount a tire in less time than it took to get to the nearest shop and back(nobody is paying me to drive my car either. 2 2'x'4's, some cut up poland spring jugs, and maybe $20 in tire irons. I would either be wasting my time driving to the shop, or I could be wasting it changing my tire. After the first tire change, the "tools" have already paid for themselves. If you are pulling your rims to get the discounted rate, you are almost all the way there anyway.