Was thinking about this yesterday during westbound TPAC on JAL LAX-KIX flight after the windows dimmed. The passengers were fed, watered and happily entertained ... was perhaps the most silent cabin I can recall in recent years, truly a tranquil and meditative experience. Huge contrast to the awful onward connection on packed B737-800 to Taipei with two yelping babies in front of me and a nonstop cougher to my left! 2+ hours of coughing. So I'll take the dimmed windows on a Dreamliner any day.