In the worst case, I'm sure reliable tie-breakers could be devised to determine home fields for conference championship games and the playoff. Fuller - if not packed - stadiums would be the result, which would be better for college football, than this:

http://www.sbnation.com/college-football/2014/12/5/7343171/pac-12-title-crowd-shows-problem-with-neutral-site-games-in-playoff

Bonus: SEC teams in ice cold B1G stadiums.