Illinois traveled well....they get the same amount of money from ABC.... Why not stick with tradition.
The only fiasco they had was when the Parade and Rose Bowl/BCS final was on different days...the Texas fans didnt arrive for New Years so the hotels werent full....then because there was no parade on game day, fans drank all day for the really late kickoff and there were a bunch of fights and heart attacks on a really hot day.
Of course, the Texas / USC game deemed one of the best ever....but they didnt make as much money on it.
Because those of us interested in, like, a good game get screwed with tradition.