Of course the trainer will wear out tires, but I rode the trainer for about 15 minutes and it seems like it'd wear out VERY quickly.
I've been told that usually people get an extra rear wheel for the trainer, or perhaps put a road slick on. I don't have cash right now to get a rear wheel for just the trainer, and putting a road tire on seems like too much of a hassle. Does anyone ride with a knobby tire on their trainer? Does it wear out super fast?