Halo

Why is Halo so popular?

I play Marvel Ultimate Alliance in my free time... as I just beat Rainbow Vegas.

I have played these types of video games since I was a kid... and I get addicted to them until I have beaten them.

Understandably, Halo introduces a fluid environment where you can play with other people... making it more challenging.

The question still remains. Why are people addicted to Halo? What does it bring them that make it worth the time sacrifice to play?

And while we are at it... why does everyone love Lost?

[disclaimer: I love both of these things, but I want to know why I am addicted...]