Well, One thing I will add....how many classes do you see to teach you keyboard (arranger)? Piano lessons all over the place, even Internet.

I personally don't want to learn to play Bass Cleff. I can use it to help with chords or LH fill ins etc...but I don't have the discipline to really play full piano music like written....BUT I wish I did. It seems Piano players do really well at arranger, but not so much the other way around. IF I was younger, I would just buckle down and do it...but not now.

I guess one reason I never did do Piano was I learned on an Organ at age 12 or so.....RH melody and chords.