Unless you have a new boat, you do not have to buy the best boat insurance available. You can choose which parts of the boat you want covered and by how much. By adjusting your policy, you could save a lot of money. Boat insurance quotes you receive online can be adjusted easily by changing the amount of coverage and asking for an updated quote.
If purchasing an older boat, you should have the boat inspected. Unless you are upgrading parts, it does not pay to insure an old motor, or other parts of the boat if they are not worth much. If you decide to replace the motor later on, you can adjust your policy.