You're not required to sail on Friday - they have some funky averaging system that will give you a score for Friday if you can only make Saturday and Sunday. Never asked how it works, but I don't recall anyone ever saying they felt like they got shafted. That gets you one more day to get there, PLUS you're in at half price for coming so far. All the food and beer is free for the whole weekend - the only food I've ever bought was my breakfast at the little diner near the campground... it's was like two bucks for a full plate, and the company is always good, 'cause there's nothing but sailors in town!
It's nine hours for me, but it really is a good time... that's where I get to race the northern 4.3s... plus there was this girl that ripped off my shirt on the dance floor once...