I think it is a no brainer that PX330 is the best arranger keyboard with a hammer action in the market right now by FAR and for under $700. It is amazing how even the closest rival can be compared to. The only thing closest would be the Yamaha YPG series digital piano which does not have the hammer action. It is a TOY compared to the PX330.

WK series has no hammer action and from my previous experience is much lesser in sound quality. Not even close to the PX series.

Just go to the nearest GC. They should have all those in display. Or call them to make sure