That RC930 looks nice if they've managed to replicate the feel. Topre switches are expensive and for no real reason other than a lack of competition from what I can tell.
Besides the key switches, I really like the layout of the HHKB2. It is based on the old Sun workstation keyboards, which I began my professional career on. And I've learned to appreciate not having the numeric keypad, for ergonomic reasons (mouse hand stays much closer to my body, right shoulder benefits)
The arrow keys and others being replaced with a function key combo took getting used to, but now it's pure muscle memory. I like not moving my hands as much.
It's also a really ideal vi editor layout with its escape key location.