I am looking to buy my first true road bike. In conversation with this older friend of my family I found out he has a buddy looking to sell his 2003 Trek 5000. He bought it, put less than 500 miles on it, and hung it in storage. It's been sitting there ever since. I have no idea what to offer for a bike that is 9 years old, but was hardly used. I guess it was about $2200 when new. Should I offer him half of new because of the age, or less? I don't know.