I think every type of flying has it's own diehards along with a group that kind of floats from time to time. A year or two back if you asked me about C/L flying in OKC I would tell you it was dead but today it is becoming quite popular mostly with older RC guys who want to do something different. One of the LHS is even stocking new Brodak kits and engines. The clubs are starting to see membership increases by embracing C/L activities. So far all the C/L activity has been glow I haven't see an electric powered C/L plane yet. But that doesn't mean someone isn't building one right now.