Traditional powers in both the ACC (Clemson, Virginia Tech, FSU) and the PAC-12 (USC, Stanford, Oregon, Washington) were down, so they draw less both at home and on the road. Any of those schools have been good road draws, with FSU, Clemson, USC and UO serving as true needle movers. When none of them are very good, interest wanes and ticket demand falls. Add to that ND’s good but not great year and you see why the ACC numbers fell.
In the BiG, Northwestern, Illinois, Indinia, Rutgers and Maryland have never had good attendance, so they pull everyone down. Illinois has drawn well when they’ve been good, so we’ll see where they go. The others have no real fan support at all, which is why you see so many visiting fans at places like Ryan Field and The Mausoleum (if you’ve ever been there for the every other year ritual of OSU bringing 25k+ while the IU fans cower in fear, it’s a sight to behold . . . Stupid Hillbillies meet Classless Morons).