I have heard of the tire eating problem before. I assume it is the slight friction, pressure and the heating of the tires. It wouldn't be as extreme as concrete but I am sure there is wear.

I am saving a worn set of tires just for the winter. Very little nob left on both and they will work perfectly for rollers.

BTW those rollers I notice you can purchase a stand attachment (to hold the forks) this removes most of the need for balance correct? The reason I ask is my gf has very little balance and will be recovering from knee surgery. She will not be able to spin quickly or worry about balance for the first couple of months.