Every time I tried to play through Fallout New Vegas, I would at some point start thinking about Fallout 3 and realize "Oh shit, I'm just not having fun." Instead of going about and enjoying my time in New Vegas, I would have to make sure that I don't fuck up the main story because of all the intertwined side quests, it would just get tedious. On the other hand, I thought the parts in the main story before New Vegas were done incredibly well, Goodsprings really had a really nice old western theme going for it. But once you get to New Vegas it seems that the game forgets that its about the post-apocalypse, which some people may like, but I really liked how at the beginning of both Fallout's it was more of a survival game.