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iPhone 5

Like the versions before it, the iPhone 5—"the thinnest, lightest, fastest iPhone" since, well, the last one—drove plenty of obsession among Apple fans. Preorders of the iPhone 5 sold out in an hour. (Mario Tama/Getty Images)

Year in Review 2012: Obsessions

Here are the top 10 obsessions that, as ranked by their search volume and percentage spike compared with 2011 on Yahoo!.