Why not?
Everything about the game looks good, and its still pretty similar to an already known and successful game. The new stuff has been met reasonably favorably, and most of the cirticism is graphics related, which is what the same people said about FO3 2 years ago. SO nothing new there.
This is pretty much a slamdunk for Obsidian. WHich is great. About time they were involved in a game that really blew the doors off in terms of sales. Also about time for Josh as well. Lots of hard work finally pays off.
I'll wait for the reviews before singing praises for Obsidian's success though. The press has generally been less excited about New Vegas than Fallout 3 (understandable, no novelty factor) but who knows how less excited they are?
I've seen people that are seriously convinced that anything less than 90 on metacritic for this game will mean that the game is a dud, and after Alpha Protocol reviewers and gamers alike are really wary about anything that comes out from Obsidian (I've seen like a hundred posts on the Bethsoft boards that were defending the game.. not because Obsidian was doing great in their opinion, but because Bethesda was helping them so it couldn't be bad.. really..), so... yeah.
Christ, I surely sounded like a doomsayer, but hey, maybe between two extremes it'll help keep things in perspective.
EDIT : I can't wait for you to get a look at Menze's new perk icons. They're awesome.