Are pricey Super Bowl ads worth the investment?

POSTED: 11:59 AM PST Jan 30, 2013    UPDATED: 09:02 AM PST Jan 31, 2013 
Super Bowl ads

Advertisers will trot out their Sunday best for the big game, but are the millions of dollars of Super Bowl airtime worth the investment? Karin Caifa has a preview of Sunday's ads, and how some brands are stretching their dollars.