Contrary to what many assume, a Big Ten championship game would not necessarily be a cash cow. The SEC's event -- by far the most successful of its kind -- generated $14.3 million in shared revenue last season ($1.2 million per team). The ACC's, which has been a disappointing disaster, hovers closer to $5 million. Even if we assume the Big Ten's loot comes in closer to the SEC's, that's still a drop in the bucket compared to the league's two biggest revenue generators: regular-season television deals and BCS/bowl payouts.
The Big Ten does not publicly release revenue-sharing figures, but it's been reported that its rights deals with ABC/ESPN and the Big Ten Network generate about $212 million annually. (That's in addition to the league's direct profits from its jointly owned network.) Add in this season's two BCS berths ($22.3 million) and five other bowl berths (about $14 million), and we're talking a minimally estimated $248.3 million in shared revenue, or $22.6 million per team.
Therefore, any potential 12th team would have to add $22.6 million in "value" to renegotiated TV and bowl deals to prevent the others from losing money. With all due respect to Missouri, Pittsburgh, Syracuse and Rutgers (the most commonly discussed candidates), there's only one viable school that could guarantee that kind of gold mine: Notre Dame. The Irish rejected the Big Ten's last invitation in 1999, and the school has given no indication it's willing to reconsider.
Then there are the potential on-field ramifications. Would the exposure from a conference championship game help a potential BCS contender from the Big Ten? Possibly. But the game could also produce the opposite effect.
While Big Ten teams have taken their lumps on the field, they aren't exactly hurting for consideration. The league has produced a second BCS berth more often than any other conference (nine times in 12 years), including each of the past five seasons. If this year's Ohio State-Iowa showdown, played Nov. 14, had taken place in a league title game three weeks later, the 10-2 Hawkeyes likely wouldn't be playing in the Orange Bowl. Oklahoma in 2003, Alabama in 2008 and Florida in 2009 are the only title-game losers ever to receive BCS at-large berths, and all three entered their title games undefeated.
If the league loses more than one at-large berth (currently worth $4.5 million) over a four-year period, that extra championship-game revenue becomes a wash.