Hi Gus,
I would highly recommend the Wave for a number of reasons:
1) It is the fastest growing class in the world and has a solid class association behind it (Class Association is International Hobie Wave Class Assn -- IHWCA, Web Site is http://www.waveclass.org(not NAHCA where all classes die for being on their back burner)
2) It is a great youth boat, and a great adult boat, being able to hold up to four adults and still sail pretty well.
3) It is hard to capsize and yet very easy to right
4) The Class holds two major events per year -- the Nationals are held the first weekend in December yearly in Key Largo, FL, and the North Americans are held in various spots annually in the summer time. Awards are given to Open, Women, Youth and Masters.
5) The class also has a series of regattas scattered around the country that make up the Wave National Series Championship.
6) I have done the Research and Development of an Add-On Kit for the Wave that adds a Hooter System (roller-furling spinnaker), blade jib and trapeze wire that makes the boat equal in speed to a Hobie 16. So, if your kids get bored with the uni Wave, just snap on the Add-On Kit and you have a hot cat as well. It is a great platform. And the kit gives the kids all the strings they would pull, if they were sailing a Olympic Tornado.

Rick