Nowdays most of this really isn't necessary of course. The media can watch the same screens from a different room and the workers can share the same view on different computers and work in pretty much any room large enough to fit them all. It is still somehow important though to have everyone in the same room (mission control still isn't separate people in their own backyards connected over the internet)....

I'm veering wildy off topic but the way people perceive spaces is really interesting to me. A great example; The debating chamber of the Houses of Parliament was destroyed by a bomb in WW2. It was proposed to rebuild it larger to accommodate the higher number of MPs serving, so that everyone got a seat for busy debates. Churchill vetoed this because he felt that standing room only in the debating chamber was more dramatic and served to underline the importance of the discussion of serious issues.