I don't enjoy showing my cars either, but when I go to a show, I have it clean so that others can admire. Recently I took my Z06 to a car show and won a silver award. The wife and I cleaned it up about an hour before the show.
Part of the hobby is meeting people, having conversation, and educating them about the Corvette. I took the ZR-1 out a week ago, and while gassing it up a gentleman walked around it and said, "That's a real ZR-1" right? We talked about the car for another fifteen minutes.
