since all cyclists have multiple bicycles, it is best to use just some stock wheels you have laying around, an old tire, and a worn cassette so that you just swap wheels for the trainer. Of course, you have to have alot of equipment laying around from your long life of cycling, but that is why we pack rat old tires and cassettes

I won't ride a rear tire that has seen much trainer time, and I sure ain't going to change tires just to ride a trainer, so a spare wheel, cassette and tire is the way to go

use your olds, use what is cheap