I've been working on selling my 2003 Mustang GT convertible for quite a while. No serious offers in a year and a half. According to the blue books, etc., I am right-side-up. Frustrated with no responses, I took the vehicle to CarMax, who has made an offer about $500 above payoff. However, this offer is about $2k below what the blue books say I should be able to get. My inclination is to take the offer, and be happy to be out of the payment. I am not a good salesman, and I really doubt that I could make up the difference between what I am being offered, and what the blue books say my car is worth. Is there any reason you can think of that I should not take the CarMax offer?