Ive taken some classes on negotiating as it pertains to my job. There are a few tactics that you might want to consider.

1) Be patient, dont expect to get that shiney new boat on your first visit.

2) Let them know you are considering other Boats.

3) Have the dealer take you on a test drive.

4) Negotiate options into the price.

The more time a sales rep has invested in you the better. They have goals to hit in sales and they will bend towards the end of the month.

After hours of there time and investment(Boat ride),
give them your price and tell them to call you when they can sell it for that price.
Be patient......they WILL call

Good luck!

Fool