John good luck selling the KORG Pa4x your doing all the right things.....that said I have bought and sold so many different keyboards thru the years and sadly lately I have noticed for sure it is getting harder and more difficult to sell them in the open market for what reason I do not know. I have sold and made a profit, broke even, and sometimes took a loss between final price and shipping costs that also have risen drastically but my impatience to get something new overwhelms me sometimes and I get into that "I don't care I just have to have it" mode. I really restrained myself in buying the new Genos just for s few reasons, the large size, the fact that its a new series unit which I know as with Tyros Yamaha will keep making many changes as models are released, no tilt screen, same old VH2, way over priced at this time for my needs and resale value.
But all in all it's really a super arranger Kb for sure as was my mint Pa4s's too..one sold privately, one on eBay but it took a while.
It's a doggy dog world out there.