If you are a ACBS member its 40 bucks and you get two passes to the show for the whole 3 day weekend and a couple other things.

I'm not a ACBS spokes person and for that matter its my first year but...
They put on a good show. Flee market, boats for sale, outboards, boats being judged on land and slips, food, the maritime museum, art, etc, etc. There's a lot to do not to mention who shows up.