Re: Who Uses RG's For....
I'm really fascinated by the relationship between how an instrument, especially electric guitar, looks v. how it sounds.
Les Paul himself uses his own signature guitar to play jazz. (Which reminds me, Les is not only still alive, but an active, gigging musician. I gotta go see him play soon.)
But you know what I'm talkin' about, yeah? It's like how actors get typecast. The Strat for blues, RGs for hair metal, semi-hollows for classic rock, etc. etc.
Most guitars are pretty versatile and some awesome things result when artists use them in new ways. Have a listen to Rodrigo y Gabriela and you will be blown away by Led Zep and Metallica tunes on nylon-string acoustic guitar.