I have seen many KB players Arranger & Synth who hardly ever use the joystick while they play & still sounded very, very good. So my question is.....is using the stick or wheel not that necessary if your a really good player? I have also listened to many who really make a mess out of playing while they use it due to abusing it, over doing it, bad timing jumping between LH chord changes etc. Who really notices all the bending anyway the audience knows its not a real sax or guitar or whatever anyway no matter how much joystick you try to use.
I rarely use it in my songs, although its very intriguing I wonder if its worth learning?