According to researchers at the University of Virginia, couples that tie the knot with a big wedding are more likely to be happy in their marriages down the road. The researchers look at 418 couples and track them through the first five years of their marriage. It was found that 47 percent of those whose wedding consist of 150 or more atendees report happy marriages. On the other hand, only 31 percent of couples with weddings attend by 50 or fewer people indicate they were happily marry later on.