Replying to Are rails that bad for my skis?

I just bought a new pair of Armada Arvs, and it ran me a thousand bucks with bindings. I did rails on my old skis (olddd head mad trix) and they seemed to take it just fine, but wondering, just how bad are rails on your edges and stuff. Ive heard some horror stories, but also seen park rats with same skis for 3 years. So is it safe to do rails lots or should i save a couple paychecks and buy some used skis for rails/rocks?