Whether it's cheaper to buy new or not depends on what kind of wheel it is. Wheel Flip has had some harsh reviews but also some good ones and they are still in business as far as I could tell. They quoted me a high, but not surprising amount to resize my 2-piece wheels. More than the wheels were worth though, so it depends on what you're working with. I don't think I would use them for work though, based on the reviews. VR would be a better bet.