Originally Posted by Duncan MacLeod
Actually Doom upgrades his armor as much, if not more, than Stark does. He just doesn't change it's exterior appearance.
Why? Because Doom likes it as it is. And if some so-called hero is foolhardy enough to believe that Doom doesn't then the fool deserves to have his head handed to him.
My mistake, thanks for the correction, I'm not much of a follower of Doom.