I think you're confusing the performer with the instrument. It's like listening to Jascha Heifetz and giving all the credit to the violin. What it proves is that a great player can make ANY reasonable sounding keyboard sound amazing. Replaying these 'favorite demos' proves nothing other than we like the performer and the performance. Intellectually, I know that Claudia Hirschfield is a great organist but I'd rather "drink muddy water and sleep in a hollow log" than listen to her play. That says little about the instrument she's playing (except that I wouldn't buy one ). Listen to Marco on piano, organ, or synth. As with Cory Henry, you'll be equally amazed (maybe more).

All in good fun and in the interest of musical discussion. Everybody's opinion is valid (at least for them).

chas