Organizers may promise an economic boom, but the Games often leave big debts.
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The 2014 Sochi Olympics are on track to be the costliest ever -- with the Russian government shelling out an estimated $50 billion on the Winter Games and related infrastructure. The plan was to spend $12 billion.
Politicians have long justified the enormous piles of money required to put on the Olympic Games by arguing that ticket sales, construction jobs and increased tourism outweigh the costs.