I recently found out that manufactuers give the dealers a trade-in value sheet to go by. I had a machine that I bought for 1000 and less than a yr later would have only gotten 500 trade-in. My Ruby I bought used from a LQS, it had only 7hrs of use on it and I recently traded it in after 1yr and only lost a 1000. The thing is; the store has to be able to make a profit on it as well so they aren't going to give you the market value. Plus I know that at least mine does have all of ther machines serviced when they come in so that cost and then they offer a warranty and that cost. If you can sell it yourself you should try but alot will depend on the machine you will trade it for; the more the machine the more youll usely get back. Good luck.