Houston YC held a Wave National Series Regatta a few years back. There is a Hobie Dealer there (or was) whose wife got interested and then suddenly uninterested.
Probably wouldn't take much to get some interest going there.
Also, Pensacola Beach has been active in the past, although not as much lately.
All it takes is some one to beat the drum and get folks out of the woodwork.
Good luck,
Rick