I have a 2008 Madone 4.5 with the original Bontrager Race wheels on it. Approaching 8,000 miles on the bike. About how long can I expect the wheels to last? What are the signs that they're wearing? BTW, I weigh about 200 lbs. if that makes a difference.

Friend of mine rides much more than me. He goes through a set of wheels every year (10,000 miles).