PSR SX900 and my KORG PA1000 Comparison

[beginpsrsx900]

I like the 2, it is complete for sounds and diverce option, but because there is a but, why I can control anything with the psr sx900 with my midi pedal as I do with my 1000 step of the same value $$.
I am seriously thinking of selling my psr sx900 just because of that, same price but not the same level sorry