Correct, something similar happens to me, never leave the car in street, never no car of mine was washed by another person, I always wash them. In my garage only enters 1 car.The use that I give to my car is only on weekends to go from my city to my country house on the outskirts.I do 1000 km per year.Long term, an R8 may actually appreciate in value, assuming of course that it is kept in good condition.
Personally, I'd love to have a first-gen one, with a V8 and a proper manual transmission. However, my garage space is all full, and I sure wouldn't leave such a car sitting outdoors.
-Uwe-