Hang glider and paraglider pilots are more likely to cross to the dark side: sailplanes. Sooner or later there's a realisation that the landing gear needs replacement. They already know most of what it takes to keep a glider airborne.
One paraglider pilot I took up, after following my control inputs, discovered it's easier to look at the top of the panel and horizon than the ASI... And he'd never flown with either an ASI or any part of the aircraft in front of him before.
Perhaps motorcyclists represent a better audience than R/C pilots.
Jim