The fleet idea, buy 2 or 3 boats. Some people can buy a luxury boat, performance boat, canoe and sailboat. Everybody at one time or another owns a car. Not everybody owns a boat. Repeat sales are different, you get much more specific users.
Some boats appeal to entry level boaters.
You are dealing with high to low incomes. Just because you are an entry level boater does not mean you are poor, this may just be your first boat. One designer hopes it never is. Boats are something certain people have. They are special.