The 11 Greatest Pinball Machines of All Time* *according to one die-hard-fan

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Kevin Martin, founder of Pair Networks, a Pittsburgh-based Web-hosting company, has been playing pinball his whole life. In the late 1990s, he began seriously collecting machines and later became president of the Professional & Amateur Pinball Association. A look at some of his collection, which happens to be one of the biggest in the world.