Friend of mine bought this off ebay a couple of years ago. He runs around 6 trucks and 12 trailers. He needed to dump some money and thought he would try a tire changer and balancer. So between taxes and saving on buying tires online he stated the setup paid for itself in less than one year. The biggest benefit is it is in the shop so on any given day or night he can use it.
http://www.ebay.com/itm/Tire-Changer...435fbc&vxp=mtr