Stephen,
I want to thank you for posting this thread. I had been dragging my heels for months now regarding checking out the PA3xPRO at my dealer. Your post, and your excitement over the keyboard, prompted me to finally go and audition it.
You weren't kidding...that's some arranger. They've come a long way since I bought my last one. I spent 3 hours on it and found it surprisingly easy to navigate.
I got another few surprises. Playing this thing taps into your "creative juices" and brings out some skills I didn't even know I had. It brings out the best in you, 'cause suddenly you can play exactly what you hear in your head.....breaks....fills.......variations. I've been focusing on acoustic piano these last few years and didn't realize how limited you are with it until you play an advanced arranger like this one.
I seriously think now I'm going to buy one, spend some dedicated time on learning all the nuances of the unit, and then contact Korg to inquire about "demonstrating" this amazing keyboard.
Mark