It did? The first one grabbed me by the balls because of the (frankly) awesome setting, but they lost it after that. Earth, Arcs (arks?) and the ultimately cliched story kinda ruined it for me. As an isolated system out in space I think Halo 1 worked. They just took it too far.
Yes. This is exactly how I feel about the series. After the first Halo, I found myself reading around on the internet, trying to dig up more about the story.
The mythos was surprisingly well fleshed out, with a long backstory in place.
Very enjoyable for a nerd like me, and all the more surprising since it's a FPS. Couple that with some of favorite gaming moments ever at our weekly LANfests, and you have a game near and dear to my heart.
Then 2 and 3 came along, and couldn't so much as stir a giggle with me. I didn't think they were TERRIBLE, but jeez. Just no magic there. Probably my fault, not Bungie's.
As far as ODST, I'll say, I'm a little intrigued. I really want the Reach game though. Bungie has a chance to give dorks like me what we've been waiting for: a total f***-fest war with multiple Spartan units dealing out some serious punishment. They really have a chance here to make something pretty cool. The NP Spartans should be nigh invincible, and each time one falls, it should be a huge deal.
Of course, all this is assuming they plan to follow the Reach book at all.
Sorry for the long, off-topic answer. Short version: I'll rent it.