They are also not making as many movies that take advantage of the big screen and even then, many Americans now own large wide aspect TV's. I realize that "King Kong" was filmed in Super Panavision and even letterboxed on the home TV aspect will not be the same as seeing it in the theater. However, many will pass to see it at home. The sound on a good home theater system is, for me, better than most theaters. I saw "Master and Commander" at a theater and then at home. The improvement in the sound was astounding.
I think it's got a lot do to with the studios having a bit of a blind spot towards theater owners because they know that not only can they recoup losses on home video, they can build on the profits made on a successful film. For instance, it looks like the April release of "Brokeback" on DVD has been cancelled and moved forward. It's still hovering around at the ten and twelve spot after many months.
Could it be the stories and scripts are not up to par? One of the considerations those executives should look at in the "bored" room.
Theaters are looking for ways to get people to include the cineplex on their dating routine. Dinner and a movie will likely never dissapear. Some theaters have even opened bars in the lobby. Oh, great, not only can we expect cell phones ringing in the middle of a movie but some drunk shouting at the screen!