So im level 7/8 and ive just gotten around to finishing everything in novac. Have yet to set foot in vegas. I do need to go find that "gun" for that "robot". but its wayyy out of the way.
That's your perogative. (referring to the title)
When I play these kinds of games I stay true to the story, not the game mechanics. If the dialogue says I need to hurry before something terrible happens, I hurry, even though I know that the NPC would still be waiting for me unharmed if I did 8 days of side quests on the way to meet them.
If I know where the man who tried to kill me is, and I'm building some notoriety in the territory - they're going to find me if I don't find them and end it first. That's no time to be screwing around with solar panels or launching corpses into orbit or finding missing items for local villagers.