If you want to sell it....listen to the sales rep.
My 31 Formula booked out average retail with options (w/o trailer) for $64K. I ended up taking $53K w a new trailer to make it move. Basically you will end up at trade-in value on a clean boat selling to a private party. Otherwise you can wait until you get "book" money for it but it could take a year or more to find someone that wants it that bad.