CL scale is in sort of a Catch 22 situation. Not very many people build scale bacause there are not many scale contests. There are not very many scale contests because nobody builds very many scale airplanes.
That is one of the reasons "fun scale" was created. Almost anything that resembles a full scale aircraft can be used, whether a profile. or a carrier ship, or a semiscale stunt ship, or just a "sport" ship that sort of resembles something like a real airplane. It would help to have a throttle, but not mandatory. Then, most any CL contest could have a fun scale event. People could drag out something, fly, and have fun, might even win a trophy, or a ribbon or a certificate or something. I have entered semi-scale stunt ships in fun scale and had fun doing it. Even flew against my carrier ship (a beat up 30 year old Class 1 F8F Bearcat) flown by a good friend which beat me. Fun scale normally does not have a BOM
Sport scale and profile scale are fun and easy events. They do not require any more time to build (usually less time unless you start fooling around with retracts and all sorts of other goodies) than a decent competition stunt ship.
Here in the SouthWest (CA and AZ), there are a few dedicated people who keep running scale contests. Sometimes more than a few people enter.
One neat thing about scale. If properly built and with proper power, they are easy to fly. With a throttle, they are fun to fly. And you do not have to worry about getting through a stunt pattern being judged by judges. The work is all done before you get to the contest site. Then, all you have to do is present your model, your presentation, and fly like it was a sport ship. It certainly does not have the mental pressure like stunt has at a contest.