"So that there is no misunderstanding of my original post, let me distill it down to one sentence. I DON'T THINK THAT ARRANGER KEYBOARDS (USED IN ARRANGER MODE) SHOULD BE USED AS AN ALTERNATIVE TO LEARNING TO PLAY LEGITIMATELY.

How or if you choose to use one professionally, is strictly a personal decision which is completely valid for the person making that decision."

Finally, a statement that makes sense.