The keyboards are worth it for me. A lot of those extra voices are real basic ones that will be appreciated not only on the melody side of the keyboard, but in the sound of the styles: live drums, live pianos, better nylong and jazz guitar, some extra horn voices, harmonica, organ voices. I think that I will sound enough better with this keyboard to take the hit.
It's a tax write off for me.
I'm buying two, so that I can have one in my office/studio. If I want to revoice a style, I don't have to lug a keyboard in and out of the trunk.
I can understand your not wanting to buy a PSR2100. Hang on to your great keyboard.
Beakybird