Overall, I couldn't care less about professional sports, but I'm curious about just how often all of these new retractable roof stadiums are actually open. Are they open enough to make the added expense of having the ability to open the roof worthwhile, or is it just the latest gimmick?
Not any real evidence other than what I occasionally see on tv, but I would say most are closed far more often than not. AT&T Stadium, in particularly, has probably had less than a dozen events under an open roof.