Also this one has Fn layer, but programming it is a pain and it's limited from what I understand. Anyway at this pricetag it's not an option for me too, way too much... HHKB is the most expensive board I have ever bough and that is the limit for me, and it was a good price not the retail one.
I mean I have redone the heating pluming at my place and it wasn't 700$, and I used expensive copper pipes over 100m in total.