That new Roland is running for something like $650US. I would say go with that unit over the Korg X5 series boards. The keys cant feel any worse than the X5 which are very poor and there is no aftertouch either on the X5. The Roland pitch bender is a X,Y stick vs the oddly placed 2 wheels on the X5. The other nice thing about the Roland is it supports JV expansion boards and the piano tone will almost always be better on a Roland. You could always get yourself a used X5DR for $300US later on down the road to add the better organ and lead tones.

My X5 has been a work horse for me never hand any problems with it but the same is true to my Roland JV. The X5 is really light but that is also a down side when you play hard or do a glissando and your whole keyboard flies off the stand.