Re: We may have found a car finally !
As a comparison, last November I purchased my '07 Limited roadster (manual) with 12K miles for $16.6.
Per PNA's post, check other pricing sources and do a CarFax or Autocheck on the VIN. Used car prices are currently on the high side due to market demand and continuing tight credit.
Also, service history/receipts, owner's manual, 2 sets of working keys and the rare multifunction tool are all key items. Make sure the seat heaters work too.
If you do buy it, break it in at the Dragon this coming weekend, and you will have full access to 80 X-Fire maniacs who can tell you more about your car than you may care to know.
Good luck.