Looking at purchasing a used Trek 5000 bike. I test drove a specialized roubais elite compact, but really dont want to spend 3k. I am getting back into cycling after a few years and wanted a carbon bike. This has a lot of the shimano 105 components with an upgraded whell set. I am also trying to avoid buying a bike and then a year later wanting to upgrade. I can get this bike which I believe is a 2007 model for around 1300.00. any thoughts would be great.