Yeah, but its not that big a deal. I have 40k miles on the drilled/slotted rotors on my Challenger, and they look fine. Coming down to the end of my pads finally, I'll throw the next set on without messing with the rotors. Might lose a little life span on the pads, but the rotors are still free of gouges so it shouldn't be a big issue. After that there probably wouldn't be enough meat on the rotors to turn them anyway.
Summit sells the D/S 11.75" rotors for $70 a piece. Just don't forget to buy a left and a right. :D