Amusement

Human beings are notoriously easy to amuse. In fact, we can be entertained by some of the dumbest things imaginable.
Name one? I hear you say.

Guitar Hero.

It's pointless. It's a series of moving points which you have to 'hit' using the corresponding keys on your fake plastic gutair. And then strum on your fake plastic thingy. :D
If that were not accompanied by music, it wouldn't sell at all.
Just... imagine, for a second. Gutair Hero. Without any music.


Well? Sucky, eh? And then with music. Suddenly, it becomes a fun game. Wow. I mean, how weird is that?

Also note that you can get basically the same thing for free, online, called jamLedgend. Fun game. The exact same thing. No music, boring. Music, fun. Weird as hell.

Now, if you'll excuse me, I'll go and play some more jamLedgend. It's really fun. :D