For all them people hoping that they can build masses of legged mr gutsys at home.
The trailer gives me the impression that you begin with a basic robot that has an "ai matrix" or whatever the fallout universe wants to call it and (after several attacks) begin to upgrade that robot.
While you can change the voice and body the personality stays the same regardless.
They either do this to cut costs or to attempt the kind of bond you had with ED-E
But then again, thats my opinion.. What do you guys think?