Debate over the world's most expensive burger continues, with the $666 Douche Burger from 666 Burger's NYC food truck challenging Serendipity's $295 attempt, reports Foodiggity. Not to be left out of the running is also the 777 Burger at Le Burger Brasserie in Vegas, which weighs in at a whopping $777. And so, the burger beef rages on. [Foodiggity]
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