Besides, the majority of people who are going to buy FNV probably would have only played Fallout 3, so they wouldn't care for the old content and not really understand. [/color]
Actually, I think a lot of them don't want to try out the old games because of the graphics and isometric turn-based combat. Or they have tried it out and just couldn't get into it.
So they figure that by having a DLC for the place that they could play through that area in 3-D and still get the lore.
Thing is, they can't.
If they can't/won't play the originals then a DLC for one of their locations won't fix anything.
It won't help them understand the old games or the old lore.
For that they need/have to play the old games.