Well my first boat is just coming out of it's warranty and I'm trying to decide if I should spring for Mercury's Protection plan. It's a 3.0 MerCruiser w/ Alpha I. I will probably only put about 20 hours per year on it and I don't abuse my favorite toy (pay attention to the manual, dealer service, flush every time, etc). I am kind of handy but have no marine mechanical experience. Mercury's plan is not cheap but I guess a breakdown of almost any kind would make it worthwhile. Any suggestions?