Sounds like you need to upgrade to Levi's. Kidding. I always sway with this dilemma also. Do you keep your seats clean (for the next owner) or are you just maintaining or minimizing damage to your baby now.
I would try to clean them. Is it Dynamica (or whatever the fake suede)?
Also funny quick story,,, I ordered and went to pick up my Black Passat TDI SEL with Corn-silk interior. My wife. My kids. Well, the kids got climbing around the back seat. My son put a black footprint in the rear seat within 5 minutes. Finger prints all over the black exterior. That car went from look friggin fabulous to crappy in under 10 minutes flat. So... scrapped that and went Reflex Silver with a medium gray (forget the vw term) interior.
The Dynamica is supposed to be easy to clean. I seem to recall, drop of dawn in a gallon of water... soft brush... blot dry.