I feel the same way. I have had my S910 for a few months now and am thrilled with it without audio files. In my case, I have all the real band realism with my Audya, and wanted something to give me a bit more laid back sound. This is it.
I like the smooth, detailed "laid back" sound too, Bernie, and this type of sound is ideal for doing my recordings as well as live play.
I've been doing some made-to-order CD recordings for some friends and I'm getting excellent results with my Tyros4.
If I want punchier, I can always get what I'm looking for using the filter/eq/effects on the percussion tracks.
I liked the S910 as well...having those on-board speakers was especially handy, and it has excellent SA voice choices.
The Audya has a sound all it's own...definitely more "live" sounding than any other arranger available today.
It's nice that each manufacturer has stuck with it's signature sound...having that choice is a good thing.
Ian