The Brotherhood of Steel was hunted out of california by the NCR. That's where the hidden valley BoS from New Vegas come from. I'd rather have a game set in the Midwest, around Chicago. Or maybe in New york.
Edit: And they would never release, or even announce it, before running out of NV DLC, of which there are at least 2 more on the way (a background story and a trip to a pre-war-mutant-infested-military base)
http://fallout.wikia.com/wiki/Fallout:_New_Vegas_add-ons
Edit: And they would never release, or even announce it, before running out of NV DLC, of which there are at least 2 more on the way (a background story and a trip to a pre-war-mutant-infested-military base)
http://fallout.wikia.com/wiki/Fallout:_New_Vegas_add-ons