I know the local sail club on Lake Hartwell has some catamarans but they are hardly ever used - some of the owners own mono-slugs as well. Personally, I haven't joined because I travel/race so much with my boat that joining the club doesn't make sense for me. The club is 45 minutes from my home and I would be constantly going back and forth to set the boat up and take it down saving me little or no time at all.
I've considered leaving a second boat at the club (I've got three right now

!) but when I go sailing 'recreationally' it's usually for some race practice or tuning - so I need to sail my 'race' boat when I'm on the water.
There is a marina on the same body of water that will rent me fenced in stick up trailer storage for $30 / month and I am heavily considering that for next summer. If the sailing club were to offer a seasonal or monthly rental the eminities would be much more affordable.
Another thing that keeps my application from entering the envelope is a mandatory work time you must put in at the club...something like 10 or 20 hours a year. I do understand having that requirement but I would also like to see an option out of this kind of requirement. Perhaps I could offer products from my vinyl/sign business instead or could pay a slightly higher rate to opt out of the work. It's not that I don't care for doing yard work rather that I simply need to take care of other things when I'm not out on the water.