my mom just took a sailing course and we are going to buy one soon... it looks kinda boring though, and its a lot of work. I prefer speed boats that you can tube, water ski and wakeboard on the back off.
I have an MC (20 feet?) and a Butterfly (10 feet?). The MC is fast and the Butterfly is bascially just to take out in the lake and tip over for fun, if its not leaking or taking in water.