That's a really artistic HL shot up there.
A lot of that bike is cosmetics. If the parts don't shine, the engine could be made of billet titanium and it wouldn't be worth it. Cosmetic condition is VERY important in the Beemer community. The R75 is a terrific bike. They handle pretty well, have one of the best seats in the business, with the Euro bars the ergos are a true pleasure. For price comparisons, check IBMWR, Airheads BMW, Ebay, etc. For a ton of great info in general, Duane Ausherman's website tells it like it is. One of the funniest stories I've ever read is on that site, too.
Anyway, that bike in good condition is soon going to start going up in value. The /5s are getting there already.