There was one that used to come out to the causeway here. In fact it wasn't Hobie then it was a Ketterman(spelling?)tri foiler. The guy that bought it came out a few times but I never seen it really fly. I think part of the problem was the shallow areas here. I think he kept breaking stuff hitting the bottom. He had a daughter that brought it out and she ran it aground breaking something.
I believe I heard it was for sale some time ago. I'll ask around and let you know or someone from this area may remember and comment.
One other thing about them, the original price of the Ketterman I believe was around 6-7 thousand. When Hobie started marketing it the price doubled. Also the one this guy bought I think was hull number six. I don't think it was long after that I heard it became a Hobie. Point is, if you can find one of the original boats it would be obviously quite a bargain.