Well, I for one will be keeping my little KMA. I have been gigging with it now as a stand-a-lone keyboard for about 5 weeks and along with my audiences I just love it.
I have not used my Tyros 4 for over a month. I might buy a PA500 to go along with the Roland BK-5 I have on order. I have just about come to the conclusion having several mid-range arrangers is more fun than one of the big guys.

Deane