No comparison, the PSR is much better, and has more options.
DonM
Don, I see your still a Yamaha User, I thought the 2000 was your last one.

No what I wanted to ask you was, does the vocal harmony please you more on the 2100?
How much more flash memory does the 2100 have? I still have my 2000! It's been good for me.
Nobby