I think the "Adventure Island" is a great way to get non-sailors out on the water, since they can also pedal or paddle it while they experiment with sailing. Great for rental places because you know the boat will be able to get back to the stable.

We have a friend with a kayak rental business at Put-in-Bay, and I'm going to suggest that she buy one of these, since there is no place on the island to rent any kind of sailboat right now.