Sin City welcomes weed: Hundreds line up in Las Vegas to legally buy marijuana as the city brags it will overtake Amsterdam to become world weed capital after legalization in Nevada Nevada became the fifth US state to legalize recreational marijuana at 12.01am on Saturday morning Hundreds lined up outside dispensaries around Las Vegas to buy as much as an ounce of pot ‘Sin City’ could quickly become a ‘mecca for marijuana’ with tens of millions of tourists pouring in each year The city is expected to reap a massive tax windfall from legalization, as much as $60million in first two years