Should I get an Xbox?

Owning an Xbox and not having Halo is like owning a television with no remote control. My friend has Halo and so does my other friend and we have massive sleep-overs where all we do is play with like 8 people with like 4 on the big screen and 2 on both of the small tv's. Its so damn awsom, we played for like 4 hours one night is was so damn fun. The only downside about halo is that you spawn right in the goddamn middle of everything=DEAD