I am relatively new to cycling (4 years) and really new at road cycling. I purchased a Raleigh R700 used in Aug 05 and put over 2K miles on it. It is well maintained by a trusted LBS. My question, perhaps dumb, is do I keep this forever or is there a time when the frame or complete bike is sold for something else? I like the bike, it fits well and recently purchased a new wheel set to replace a pothole damaged rear wheel.