For about $89,000, you can buy the boat famous for setting aground on an uncharted desert isle to set the stage for the 1960s television classic "Gilligan's Island." ...

Millionaires account for that tiny slice of the world's population, and some enjoy owning yachts to match their incomes, stretching 300 feet or more.

Selling a boat or upgrading to a different vessel requires an understanding of its fair market value to determine the best sale or trade-in possible. Similar to the markets for cars, trucks, and ...