Re: cheetah boat value
Everyone else has pretty much nailed it, depends on condition. I would ask it to be run on muffs and a quick compression test. Get in and give the floor and transom a good look. Look for any soft spots, rot, cracks, etc. Ask about the history (maintenance, storage, use, etc) and use you judgement to tell if he's truthfull. Lastly, don't fall for "in the spring it will be worth xxx." It's worth what a buyer is willing to pay. That may be more in the spring, or it may not. Tis the season for good deals.
Good luck!