Well, the first video the demonstrator is playing a piano sound that no other keyboard has, so you have to buy this keyboard, and the second video, the WERSI organ, the player is playing a one of a kind chorus sound, so, conclusion,run out and buy a WERSI, if you can't afford it, get a loan.
HA HA HA HA HA, main focus, musicians that play real instruments and not an arranger, I guess thats what they are trying to say in these DEMOS, what a waste of time.