The places you can visit in New Vegas are just so much more interesting and fleshed out than the ones in Fallout 3. I barely spent over 20 minutes in Megaton my first play through, meanwhile, as soon as I entered Freeside, I was captivated by it and searched every single corner for a new event or quest. Everything about it is more believable, more entertaining, more involved with the world. Fallout 3 settlements are isolated and never seem to refer to each other unless they are 5 feet away from each other. Most of the characters aren't interesting or believable. So when I run out of quests in towns like Megaton, or Aferu (5 people living on a bridge, oh my) I simply move on. Meanwhile, I when I run out of quests in a place like Freeside or Goodsprings, I become depressed. These places feel almost like a home to me, and see all these boarded up houses and buildings, all this empty, unused space; it really makes me sad. I want to know more about the Kings. I want to know more about the Followers. I want to know more about how Jacobstown and Marcus are fairing. I don't care about a bunch of idiots living around a bomb. I don't care about a bunch of boring, generic npcs living in a tower. Hell, simple filler quests would've have sufficed. Please, Obsidian, when you create massively interesting game worlds, please, you know, fill them with quests and things to do.