Such is the first bubble in expansion to burst. These conferences are too spread out, and the fanbases are, with a few exceptions, not large enough to absorb the ticket volume. The SEC is, and will continue to be, the only truly viable title game from a ticketing perspective.
There never really was a bubble for it, was there? I thought it was mostly for TV.
You're also quoting games in which the real division winners ended up ineligible because of sanctions.
Big Ten
2011 - #15 Wisconsin vs #13 Michigan State, Indianapolis - 64,152
2012 - Wisconsin vs #12 Nebraska, Indianapolis - 41,260
ACC
2005 - #22 Florida St vs #5 Virginia Tech, Jacksonville - 74,749
2006 - #16 Wake Forest vs #22 Georgia Tech, Jacksonville - 62,850
2007 - #12 Boston College vs #5 Virginia Tech, Jacksonville - 53,212
2008 - #20 Boston College vs Virginia Tech, Tampa - 27,360
2009 - Clemson vs #10 Georgia Tech, Tampa - 44,897
2010 - #20 Florida St vs #11 Virginia Tech, Charlotte - 72,379
2011 - #21 Clemson vs #3 Virginia Tech, Charlotte - 73,675
2012 - #12 Florida St vs Georgia Tech, Charlotte - 64,778
PAC-12
2011 - UCLA vs #9 Oregon, Eugene - 59,376
2012 - #16 UCLA vs #8 Stanford, Stanford - 31,622