Welcome to the forum from the Keystone state. With proper maint, Goldwing engines have been known to go well over 200k without major problems. Don't let what seems to be "high mileage" scare you off if the price is right. Ride safe and enjoy the forum..
Mileage and longevity has long been the trademark of Wings since 1975. If that '05 has 70,000 on it, it was ridden very regularly. I wish I had that much time to spend riding mine; that's like almost
15k a year. Most of us are pretty careful about our maintenance.