So I just read an article by Klosterman that would be inane, except it's entirely tongue in cheek so it's kinda fun instead. (If you weren't sure, the footnoted reference to mid-90s musicologist Ronald Thomas Clontle should give it away.)
The idea is to determine how much value a given rock musician brings to his team... err, band... above that of an average rock musician. The best/worst part comes when he provides the "established value" of a host of bands. Apparently, in Klosterman's world, Pizzicato Five is on a par with the Jimi Hendrix Experience and the Velvet Underground, and Joy Division is near the bottom, on a par with Black Eyed Peas.