What Diki said...

And, the NP-v80 doesn't have USB support for additional styles or songs. That's a biggie today! If Yamaha would come out with a 20 lb. 76-key arranger, ala s910, then I might be interested in buy ing another arranger. Until then, I don't see anything out there worth switching to.

I would even be interested in a board with less sounds and styles as long as what was there was useable. I don't need sampling or a mic input/harmonizer or even tons of editable effects.