Squeak,
I hear ya loud and clearly, but let me help you to understand a couple of points:
As you know the US sales are only about 5% of the European market.
That already determines what will be in a KB for the most part.
Obviously they will listen to the Europeans before the US. Sad but true.
I'm also on the German Yamaha Forum and Yamaha did sit down with German forum members and discussed what they wanted.
The Tyros was the result and many features were implemented.
Even though I'm 40, I like more modern music too.

In Europe the target market is not 40+.
A lot of teens are on the German Yamaha forum owning a T1 or T2.
The membership is much larger than the Synthzone membership. And that's for Yamaha alone.
Coming from the 9000Pro I was very excited when I found out that the T2 actually "DID" have a much more modern feel in its styles.

It might not be what you are looking for, but we are moving in the right direction and I'm very happy with my board.
In addition the European market is flooded with third party styles that address the top charts. I have many of those and am quite happy.
Of course I feel your frustrations for the shortcomings of the US market.
But as you can see in my post it is not quite as you stated looking at it world wide.
I hope this helps.
Eric