As far as I know, I'm the only one remaining around here that entertains as a one-man-band exclusively with styles and real-time playing and singing.
There are several people using arrangers but all of them that I know of use at least as much midi, mp3 and kar stuff as styles.
Semilive could do a show with just styles, but he usually doesn't because he prefers guitar jobs.
My friend Dickie T has a new Tyros 4 and uses styles, but he also uses a lot of midi and CDG files. Our friend Henry L. uses Roland BK7m and uses styles, but relies heavily on CDG as well.
Vince Ramos down in Houston uses Ketron SD1 and plays mostly styles. I'm sure there are others in the general area that I'm overlooking, but I don't think so. Some of the others use midi or recorded music and even act like they are playing keyboard.
However, as DNJ says, whatever it takes to please the people is o.k.
DonM