You can still make some good money off them if you're confident:
Vegas Insider Super Bowl Odds
Denver Broncos: 3-1
New England Patriots: 3.5-1
San Francisco 49ers: 5-1
Atlanta Falcons: 6-1
Seattle Seahawks: 6-1
Houston Texans: 7-1
Green Bay Packers: 8-1
Washington Redskins: 20-1
Baltimore Ravens: 25-1
Dallas Cowboys: 40-1
Chicago Bears: 50-1
Cincinnati Bengals: 50-1
Indianapolis Colts: 60-1
New York Giants: 80-1