Opened with Seattle -2.5 (most bettors go with the most recent outcome)

What were the Futures Odds before the season started?
Here's CBSSports odds dated September 3, 2013:

Link:
http://www.cbssports.com/nfl/eye-on-football/23465056/super-bowl-odds-who-are-vegasstyle-super-bowl-sleepers

There has never been a pick 'em Super Bowl!