Hey Gentlemen, let's not get defensive. I did not say that the PSR-9000 is "better" than the X1 (although it probably is). I simply pointed out just one thing that the X1 can't and never can do - play 126 notes at one time.
So, let's keep things in perspective . . . you want to stick with your old X1, and I like the NEW technology of the Yamaha PSR-9000 with the incredible Live! voices and huge polyphony. Isn't that fair?
PS. I drive a CADILLAC (its simply the best). Drove a Mercedes once, didn't like it.