In 2003, Jeff Bezos came up with yet another way to frame his concept of Amazon. This time, it was for a group of buyers who were leading the company’s charge into the new hard-lines categories, a group of products that included hardware, sporting goods, and electronics. Amazon, Bezos said, was the unstore. At the time, Bezos had selected jewelry as the company’s next big opportunity. It was a tempting target: the products were small, the prices were high, and shipping was relatively cheap.