Yeah, what Pro and Donny said, and...

Keyboards are products of market demand. Yes, there is a definite market for higher-end machines, but Yamaha makes a lot more money selling PSR 180s and the like as it does selling Tyros and PSR 3000. Roland does the same thing. And don't forget all of these manufacturers have home digital pianos that have the same or similar features.

If I could have my dream machine, I think the upcoming G70 is pretty close. As an organist/pianist, I see the G70 having most of the features I use. What I really demand is a hands-on interface that is easy to use, with a minimum of hidden pages.
For what it's worth...