While there are some Hobie-only events in the area, in some cases there are only Hobie 16s attending. Having a Hobie boat doesn't always get you to a Hobie event. Before I get flamed for pointing this out, just look around. It is more about class than manufacturer, and there are places in the US that if you want to race locally, you need a Hobie 16. Nothing wrong with that.

I think F18 is most satisfying if you're willing to travel to some events. I had the only F18 at my club for a while, but I got in plenty of racing between local open-class stuff and regional F18 events where I knew my friends would be going. With an F18 Worlds possible in the US in 2010, I expect to see growth in the class continue.