I don't get why people say New Vegas is Fallout 3 with a different story. Yes, it is in a way still the same old Fallout, but they are many things that are different and or better than the last Fallout. In a way New Vegas is three different stories weaved into one game. Do you side with the California based NCR and defend the Hoover Dam? Side with Caesar's Legion and drive the NCR back west? Or even take the reins of New Vegas and make it independent? Really all of these factions are interesting in their own way. Therefore New Vegas is its own game.