Also, the story of Fallout 3 was great in my opinion. It starts after you're fucking BORN and it goes on from there.
They kind of derped on the story of the main quest in New Vegas by just pulling off the old "He gets amnesia! Now we don't have to tell explain anything that happened BEFORE he got amnesia!"
But then again, that's just an opinion of someone who only played the first 2 hours of New Vegas because I had never played FO1 or 2 and was used to the dark, grim style of Fallout 3 and expected just that.