 Las Vegas has changed over the years, but WTOP business reporter Jeff Claybaugh says one thing about it has not. From chapel vows to extravagant destination weddings, Clark County, Nevada accounted for 4% of all weddings in the U.S. last year, 74,000 couples. The wedding industry generates $2.2 billion in economic activity for Clark County. And it's not just Americans getting hitched in Sin City. International weddings in Clark County jumped 15% last year.