I upgraded my bike last year,and sold both my DH and mine on Craigslist. We were trying to justify the costs of replacing two bikes that were only a year old...now that it has been a year since we sold them we have often wished we didn't. It's always good to have a spare bike in case of break downs, or visitors stopping by that want to join a ride or whatever might come along. Plus you can never replace that bike for less and you really don't get a great resale price on used bikes....just a thought!