Mark said it's part of the attendance review their performing.
All I know is: if rivalry games mean more attendance, then this is just ridiculous. A measure that will benefit once again those teams with huge stadiums, and will kick the balls of teams that didn't overbuild their arena for seasons and seasons, that don't currently have money to expand arena, and that won't have money to expand arena because of the 40% cut.
But hey, I'm bitching about something that wasn't said, so... let's just wait and see.