It all sounds so complicated that's why players rather just buy a nice arranger T5, Pa3x etc, and have it all in one. I may be wrong but Most have no idea about all this VST stuff and just want to power up and play. You can have all the VST sounds you like but in the end its still not the original instruments and honestly what we have today in Arranger Kb, & Workstations is more then enough & close enough sound realism for me. For myself on stage I could never use a computer based setup as the navigation vs an all in one unit is much more difficult in a Live "on stage" OMB playing situation when making lightning fast onboard button changes,...
in a studio recording is another story. If I could be proven wrong I's invite the opportunity to see that happen. Just my take on this ..