Believe it has been two seasons now (2015 and 2016) - its all about the Benjamin's($$$) Much bigger home crowds and many more students (especially at the large school level). It has and will result in a interesting quandary - seeding now becomes critical, scheduling becomes more difficult because seeding is based on record up to (approximately) January 26th, therefore teams won't schedule tough non-district rivalry games before that date. The Union tries to play coy by not revealing exactly when they will reduce the pairings and it goes around and around (check the schedules for all the great match-ups on or after January 19th).
Argument from the Union will be "its too expensive to have neutral court games for every final, look at football, they don't go to a neutral site until the semi-finals - basketball goes neutral (Wells Fargo) at the quarterfinal round."
Personally, I completely agree that a game that important should be determined on a neutral court.