I HAVE sought them out. I tried several times to arrange to see one. No success whatsoever. George Kaye is thousands of miles from me.
Same is true for Ketron.
Yamaha Tyros is just down the street. I know I can live with a Tyros. Don't know about the others, and there seems to be no way to find out short of ordering one sight unseen, which will not happen.
DonM