I just wanted to quote something that I read from the link Mike posted in the SX900 vs SX700 thread which gives me a lot of pleasure knowing, I've highlighted the important part:

[b][/b]

Thanks D & D! Good info to have!

Well, it’s obvious that styles are just a data and what is heard is totally up to the voices in the machine, to DSPs, and quality of audio components in general, therefore it would be a surprise to learn that they sound the same on Genos and PSR-SX.

Also, when users pointed out that not all controls are easy to use with a touchscreen it reminded me that Genos comes with sliders, which may make up for it, and PSR doesn’t have any. I’m still curious if it is easy to mute parts on Genos without looking at a screen; obviously, they can be muted with sliders, but it’s not the same.

I can’t help thinking that Yamaha was forced to use touchscreens just because of its popularity on phones and tablets, but not because there was a real need for it. Whereas on a phone it helps to save space, on a keyboard it’s not that obvious.

I agree KNOBS RULE!!!

Touch screen, sliders and knobs rule.
And the more buttons to assign as we want it, the better it is.

Wow..

The really nice screen is a strong point of the sx900, while the even nicer screen of Genos is not..

There is so many things not named in this comparisson, its not even funny..
And then i mean things on the Genos..

You want me to make a longlist?

That would be super Bachus thanx..

76 keys
Fsr keybed
Aftertouch
6 knobs
9 sliders
Bigger screen
Better buildquallity (despite being plastick, its build like a tank)
More connections
More sounds..
Sa2 sounds
Ensemble voices
Revo drums
3 types of drawbar organs
Huge amount of dsp effects
No build inpeakers (which to me is a pro)
3GB expansion memmory
3rd party expansions, many more then for psr series
Dual audio player
Better bigger and more buttons,

And probably a few more..

Well worth a few thousand more then sx900