To me it'd kinda be annoying to have to reach that far up on the keyboard to hit the additional keys.

In contrast though a keyboard they have on the site really appeals to me.

Raptor Gaming Keyboard

Reason being the reduced width. My setup is like this

K-keys|G15|Mouse|Mouse

and with the G15 being 21.x inches long it spreads my arms at uncomfortable angles when I'm on my secondary mouse.

The Raptor here is reported to be 15.x inches long, so I'd save 6 inches in spread, making it considerably more comfortable.

I'd truly hate giving up my backlighting and LCD though...