A lot of things are like this, such as how much of what Amazon sells, Kindles are at one end and obscure books, dvds are at the other end, it's an often quoted

A lot of things are like this, such as how much of what Amazon sells, Kindles are at one end and obscure books, dvds are at the other end, it's an often quoted phrase for online selling. It's a flipped round (but still related) version of http://en.wikipedia.org/wiki/Long_Tail http://en.wikipedia.org/wiki/Long_Tail