I've read some old threads in reference to depretiating boat values. It seems the general rule-of-thumb is approx. 70% of purchase price once the boat is pulled off of the dealer's lot. When people are saying 70%, is it 70% of MSRP or invoice? I would assume it is MSRP, but I'm also aware that certain boat manufactures don't even list MSRPs and that they leave it up to the dealers to establish list price. With that being said, how does NADA and other blue book companies establish a list price to work off of. I just purchased an 2003 Chaparral 200SSi with premium, convenience, and sport packages, VP 5.0 MPI, snap in carpet, bow and cockpit covers, bimini top, C-Hawk tandem trailer with disk brakes, diamond step plates, retractable tongue and spare tire w/carrier for $29,395. I had $9000.00 down w/ my trade. I researched NADA for the 2000, 2001, and 2002 196SSi (same boat) market values. The prices listed did not reflect a 30% depretiation value. I believe the difference between the 02 and 03 was about a $2000.00 price difference from the $29,395 I paid for my new boat. Any comments?