I have a completely blank Leopold with MX Browns. The only thing not uniform are white arrows, wsad, and esc keys. I love this keyboard to death, and type just as fast as I would on a marked keyboard.
And yet? The thought of making each key do what I want sold me. If they told me I could have macros that changed the lighting rapidly enough I could have simple animations... god, I would seriously consider buying it.
[quotemsg=9443573,6,792998]Razer Blackwidow has individually backlit keys as well. Is per-key illumination any different? :S[/quotemsg]
I believe that means you can change the color of each key's illumination. If it doesn't mean that then there's no way I'd pay $40 for the plastic thing with lights.