Horror movies started to wane around the onset of World War II, and after World War II, when all the troops came home, people weren't really interested in seeing horror movies, because they had the real horror right on their front doorsteps.
“My favorite day was Monday, September the 25th, 2006. New Orleans, Louisiana, site of the Superdome. I watched our people who had suffered so grievously through Hurricane Katrina fill a stadium hours before a game and stay hours after the game.”