I'm very happy with the PA3X. I also have a Roland E50 and a BK7m. I may downsize a little. It makes no difference to the audience.
Last night I had two complete systems set up in two different rooms.
I played a 50th anniversary from 5 to 7 in the Veranda room. I used PA3X, and Logitech Z2200s. No mixer, no laptop. I have all lyrics and midi files on the internal drive, if I need them. Mic runs through the keyboard of course. Main left and right outs into left and right ins on the Logitech. It went great. There were about 30 people in the room, overlooking the city.
At 7 I walked into the other end of the building. I used Roland E50, Digitech Harmony M for voice processing, Edirol mixer and two Bose Compacts. It was packed in there so I got to crank it up a little.
I was tired at the end of the night. I played from 5 to 11 with two short breaks. Paying the price today with leg cramps.
It was worth it. He paid me pretty well, and tips were more than my regular pay.
I enjoy the touch of the PA3X keys, but my arthritic right wrist hurts way less when I use the ultra-light touch on the E50 and/or Roland controller for the BK7m.
After all these years, I can actually see the end of my full-time career on the horizon. Hope it's not TOO soon though.

DonM