Well I actually NOW classify the success and hype of Halo 3 as half epic storyline and half insane multiplayer.
I bought Halo 2 because of the storyline (didn't have Live back then) and now I am buying Halo 3 for both.
If I didn't have live or if Halo 3 didn't have MP...I would still buy it.
yep, i bought halo2 for the storyline as well and now im buying 3 for both