Is "til death do we part" outdated?

The majority of married couples still include the phrase "til death do us part" in their vows - so do they mean it?

According to a recent study by marriage sociologists, yes they do. 60% of married couples surveyed said they intended to stick it out, no matter what. 

The study also found that men are significantly more likely than women to fall in love at first sight. 48% of the guys were ga-ga from the get-go, compared to just 28% of the more finicky females.