In URC in 1986, there was a proposal to mandate a club tire. The idea was $125 per tire for rear (can't remember if it was for both). Nobody could understand why a guy like me with no money voted against it. We ran a lot of used tires, $25 each. Any used tire from URC needed a stamp, so it would have cost me more money, not saved me anything. One driver quit URC altogether over it.