The PSR 3000 has an outstanding sound no matter what price it is.

its main weaknesses in comparison to the higher priced boards are Drums, Acoustic Nylon Guitars and Brass...

to have those extra mega voices (Sax, brass, trumpet, strings, Nylon Guitar) alone would be a MASSIVE improvement... the fact it ha SA voices is also a big jump.

I think the S900 will be a great jump over the PSR 3000... keyboard features are pretty much all there, its just the sound quality that needs improvement and I am sure the S900's sound quality will smash the PSR 3k...

in a lower priced keyboard (S900) honestly what do you expect? Hard disk recorder, bigger speakers... you cant everything and never will.