I don't get it... Using an E-A7 seems a lot better to use on stage.. Not much bigger than a guitar pedal board..
Speakers for monitors.
Mic input with effects.
On board mixing.
Insert effects for your guitar.
Better drum machine.
And a go to left hand bass and great Rhodes sound, always ready to play.
Audio player for breaks.
SMF play when needed.
6 pads with your own phrases.
Easier set up to boot.
Makes more sense to me..