[Keith Tedford]

I've seen rotors off of a Saturn rusted/pitted so bad that they wouldn't clean up, and this was on a vehicle that had mostly highway running on a regular basis. Very poor material. The Saturn rotors don't seem to be any better than the cheap replacements. Probably the same parts. Our old cars sit most of the time and the old two piece rotors never seem to build up any surface rust on the faces. The rotors on our '97 LSS don't rust either. Originals with 90K miles and look like new.
With rear discs, especially in salt country, you need to pull the calipers every year, to clean and lubricate the pins they float on. Rear drums seem to be a lot less trouble in salt country.