Don't know where Micah gets his figures but they are way too high. If you can get 4G's you will be doing great. I know this seems low, but you are a private party selling a used piece of equipment. Buyer does not know how it was talen care of or what they will have to put in it. My trade in offer to you would be $3000-$3500 depending on what you purchased. Sorry, but if you get more than that, it will be from someone who does not know the true value of what they are getting. There is a blue book value which you can get from all of the dealers which you are looking to purchase a new unit from. Ask them, should you trade in or sell outright.