OH! You mean mindless exploring with not point beyond run n' gun. No, I don't miss that.
I don't mean to spilt hairs with you Colonel, but thats kind of a baseless accusation to make against Fallout 3.
Sure you
can just run-and gun explore in Fallout 3, but thats not what us "explorers" refer to when we mean "exploration". You can run-in-gun explore in New Vegas too, and in my opinion there is more of it. (note just my opinon, I simply feel that New Vegas shines with its story, not its gameworld).
When I think of exploration in Fallout 3, I think of the buildings with various backstories such as LOB enterprises and the Dunwich building, along with little gems such as the McClellan Townhouse and the numerous terminals that allow me to piece together what life before the war was like, and even sometimes what the
war was like.
The only place in New Vegas that I've been able to experience something similar was the HnH Tool factory, and I really wish there were more buildings like it.
So in short, while I don't necessarily think New Vegas needs to be more like Fallout 3 (hence I don't really agree with the OP), there's no need to ridicule something I find great in Fallout 3 while defending New Vegas.