If you want to call it a story, a casino that didn't open because the bombs dropped, and about a heist... In which you go through the horrible city, that was a pain in the rear because of losing your stuff, and you finally get to the casino, and it isn't hardly what it was made out to be. Even the vault, you go in there, you can barely take anything with you. The gold bars weigh so much that you have to clear everything you are carrying to take only a handful, even so, it's not like you have trouble making money in the game.
My friend is constantly bothered by the story of NV in general. He feels that the game is too short, as he thinks that the story ends when you get to Benny and end the whole ordeal of getting back the chip. I think that while it ends the situation with Benny, you still have the whole reason the chip is even there, and why everyone is fighting over it. But, again, the story in general, isn't as in depth as 3.