Best Invention for Your Desk EVER!? [VIDEO]

If you have a desk job you sit at your desk for about 5 hours per day. And if you're a gamer, or just like to be on your computer at home, you're at a desk for even longer! I came across this invention, and I think it's either brilliant, or ridiculous (maybe a little of both). Check out the video and you'll see what I mean. Would you buy this....?