Correct, it has been declining. However, one of the most important and overlooked is generational. Millennial's do not follow sports teams and leagues the way that other previous generations (Boom, X, Y) have. They prefer to engage in an activity or simply ignore it. Also, when they do follow sports their tastes are different. Witness the rise in the popularity of UFC v. Boxing and Soccer v. American Football and the slow death of baseball and golf. I saw a regular soccer game on television yesterday held at Mercedes Benz stadium in Atlanta that had an attendance of 47,000. This was not a cup final or a World Cup match. This was a regular league game...47K. Times are changing.