Not trying to be a smart-ass or anything, but at this point with those two keyboards I would consider which one i can get the best deal on. Both boards are discontinued; the G70 has not been superceded, but the PA1xpro has. So maybe in that sense, the G70 might have a little advantage in technology. Have you owned a Roland or Korg arranger before? The operating systems haven't really changed that much in years, so if you are familiar with one and like it, go that way.

Personally, I've owned two G70's and almost bought a third because I do like it that much. I always tire to the weight issue, but in this case both boards should be near equal in weight. Good luck in your quest.