There's another musician in my area who does the local retirement home circuit. He plays the KN7000. I play the PSR3000. Technique-wise, he plays rings around me.
I have had numerous old folks, including a life-long musician, come up to me and tell me that I'm a better musician than my friend with the KN7000.
Knowing that this is simply not true, I suspect that they are enjoying the music out of the PSR3000 more than the KN7000.
Beakybird