I plan on keeping a boat on the west coast of Florida. (apparently the sterndrive eating capital of the world) I will boat 75-100 hours per year. The boat will be kept on a lift. The model of boat I favor (40 ft day boat)comes only with deisel sterndrives. I have read extensively on the maintance issues surrounding this set up. My question is this: When looking at two,2-3 year old, sub-100 hour boats with records of good maintenance and both were kept on a lift, would you favor a fresh water boat without closed cooling, or a sea water boat with closed cooling? What price- premium percentage would you assign it? thanks as allways!