You could get a USB hub that only offers additional USB ports on your computer, but doesn't that just seem wasteful? I mean, why have it just provide that one boring utility when it can do so much more?
This USB hub offers 3 extra USB ports, sure. But it also acts as a mousepad and a calculator. Oh and it also has a "blue, moody light" that looks like a nice touch. And who doesn't like moody lights? For only $18, I don't know how you can say no.