Intersting observation Steinmetz.
And I will just point out a few more...although it seems a bit silly after YM's intellectual and insightful posts....
In Publish or Perish you have Riley Greenleaf watching that Porno movie and almost practically drooling!! By Dawn's Early Light has no mansions at all in it...only that little house boat that Cadet Springer runs off to! And Mind Over Mayhem is void of any beautiful surroundings...only the harsh backgrounds of the think tank. And no mansions in Double Exposure, Lovely But Lethal or Troubled Waters.