I have a '06 Goldwing (non trike), my wife has a '05 Cherry Red goldwing Motor trike spyder trike. Since I do all the work on her bike, I figured I'd join your forum. She has about 36k miles on her trike. We bought it in '07 with 97 miles on it (guess the original owner wasn't into riding).
Major additions since we bought it was having it raked, and I put a Kury rear fender on it. I also had the rear brakes upgraded.