Speaking of radio control, many decades ago I attended a "York-type" large meet/show in NYC that was entirely devoted to the model R/C hobby. I bought a few Robbe servos and a cheap xmtr/recvr combo to do some experimenting.
I have Googled to find out if such meet/shows/expos still exist, but have not had good results. Is there anyone here on the forum who has a parallel R/C hobby in planes or trucks or boats who might know what's up with the R/C hobby right now, and if there are public meets where the manufacturers all show up to display their products? Or is all on-line marketing?