i was thinking about this thing for a long time now, here is basic: just looking at music in general, it looks like guitars are taking charge, there were days in 80's when synthesizers were popular in music, now guitars are used in almost any music genre, especially in Rock there are no keyboards used generally in rock. Even looking at styles that are in our keyboards most of the styles have some kind of guitar in them, muted, distortion, 12-string... this gets irritating sometimes, most of the music is guitar-driven, even the music that is keyboard-driven music has guitars in it...