If I would want to re-invent the wheel. I'm not that good in Physics LOL
Could just say n52te and G13 and Xkeys are useless too. But most people who have one do not regret there bargains.
It's maybe just a different playstyle, and many/somepeople can't play via Keyboard and are used to Gamepads.

Btw, yeah you can just sit on your Chair with a Wireless KB and a Wireless mouse -.- wtf? where are you holding it? in the air? What kind o desk do you need for that?!

Anyway, I just throw my Ideas in the room.