If used 17-yr-old TC shows $9k on NADA... for one in great condition as far as looks go (appears to have not been used much at all), would you pay NADA or how much less? To get a good deal.
If you are looking at the full resale price in the book and not the trade-in value that is usually high. What the dealer would price it at hoping a non-negotiating sucker would come along and pay full sticker price. If I'm the seller I'm happy to get somewhere between trade value and full resale. But all those are just guidelines to go buy. Really it's worth what a buyer will pay.