I think what used to be mainstream RC used to be the .25-.60 glow powered stuff, but that's shifted a little (IMHO).

With the huge changes we've witnessed in the last few years, of imported stuff at unheard of pricing (which has drawn a LOT of guys back into the hobby!), seems like there's been a major shift in interest towards electric and gas powered stuff, the likes of which we've never seen before. Yes, this started off with some pretty tacky product (junk), but has now evolved into something much more worthy. The thing is, when compared to the older mainstream, much of it is smaller (sub .40 size), and bigger, some much bigger - like the 55cc and up gassers we see so often any more.

The 3D development/evolution has also been a big deal. That's caused a level of development that has now raised the bar regarding very light weight, though still sturdy air frames to a very high level. These seem to be completely ignored by the big 3 importers, much to some smaller importers delight.

On a personal level, when it comes to bucks spent for bang received, product I'm interested in any more, must perform at a much higher level that it would have even 5 years ago. I don't fly glow any more. Everything now electric (39 to 48") or gas (.40 size and up)

That said, my 20cc Revolver is still flown frequently. I'm guessing they had no idea how well this plane might fly on 20cc when they designed it. Kind of an accident that turned out really well - but that's wandering off topic. -Al