People with too much time and money on their hands
Found this link on Andrew Sullivan's blog--10 quite extravagant home theaters. Even in the last ten years, it seems like home entertainment has become a massive industry. It's the theater experience at home. I can't help but wonder, though, if the novelty wears off when it's your house. Part of the appeal of an extravagant setting like this is the uniqueness of it. It's all feasting and no fasting, so to speak, which makes the feast less feast-like. Still, while the movie was mediocre in my opinion, I like the Titanic theme here...