Well, non-split mechanical keyboards are more than that. I paid $240 for my HHKB and $250 for my Realforce 87U. Both phenomenal keyboards, though.
The uTRON is what I consider the ideal keyboard, and it does exist: http://www.plundertech.com/utron-keyboard/
Topre switches are my favorite, and I love how it puts more load on your pointer fingers instead of on your pinkies. I'm definitely going to pick one up soon, but it will require a trip to Japan.