I actually love playing both KORG & Yamaha......but for me as a very unorthodoxed finger physical, non pedalist style player on stage it's all about the features and navigation. The S950 display was more readable vs the flat Pa3x,Pa900/Sd7 last time out.....
The new Pa4x Tilt display answered that problem amongst it's many other kool features.

Tyros units although sound terrific have way too much unneeded real estate for me