Having my own set of PSR2100 styles for my PSR2000 I am very happy to keep playing the PSR2000. I'm not gonna pay $400 more just to get a few more new voices. I'm sure those new voices are excellent..........but my PSR2000's voices are excellent too. Maybe the love affair will fade in another 2 years when Yamaha comes out with a totally new type technology keyboard. Someone at this forum said that the PSR2100 should have been just a firmware upgrade to the PSR2000.........NOT being made to buy a whole new board! I'm beginning to agree.............beside's...........I still have THOUSANDS of styles to audition and convert for my 2000! Better get busy..........