2 new sundancer 240s same price: First off,I'm glad I decided against the 5.0 ... sea trialed it and too weak. Dealer has 2 boats.. can't decide between them: same price... one boat has 350 Mag MPI bravo3 with A/C the other has 350 Horizon Mag MPI bravo 3 NO A/C... I boat on Long Island in salt water. Is the horizon series really that much better with the fresh water cooling? It seems a better value to have the A/C especially at resale ( even if I don't use it much)and to go with regular mag.. What do you think?