H is for Headphones (A Guide for the Perplexed Buyer)

You may not like Dr. Dre's music, but you have to thank him for one thing: putting headphones back on the map. Or at least, slapping his name on a product on which people will pay far more for the letter "b" than they would on Wheel of Fortune.

In the last few years, headphone sales have exploded, with Dre's famous Beats headphones leading the charge and soaring past $1 billion in sales. The celebrity endorsements and prominent placement in Apple stores surely don't hurt, but if you step back and consider how radically the headphone market has changed over the past few years amongst non-audiophiles, it's pretty astonishing.

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