I think so, it's certainly changing.

I built my first model, a rubber powered Keil Kraft Ajax in 1959 when I was eleven years old. Then flew several free flight and control line models until the sex'n'drugs'n'rock'n'roll years took over. I built my first radio controlled model in 1988, a Keil Kraft Junior 60 three channel model. In those days you had to build and cover your model and install the radio and engine. In the Nineties models with foam veneered wings and lite-ply fuselages became popular but you still had to build them.

Nowadays you can buy something made of foam powered by an electric motor, plug in your radio and go fly it but where's the satisfaction in that? Agreed younger guys have family responsibilities and do not have the time to build.

I have seen the future and don't like it very much but, if i/c is your thing, you can pick up some good second hand engines for next to nothing as the Grim Reaper thins out our ranks!