My PA80 handles dropouts much better than my old psr9000 did. I think Yamaha layers more voices from the factory. The raw Korg samples seem to stand up alone better, so you can add a layer and still have some room to play.
I'd love to see everyone add to this total (128 or more!)but in the meantime..... the Korg allocation is actually not terrible. It's just not moving ahead with the times either.