Carr obviously didn't read Free! Why $0.00 Is the Future of Business (http://www.wired.com/techbiz/it/magazine/16-03/ff_free) by Chris Anderson, the "Long Tail" guy. All sorts of things are just marketing material to drive awareness and sales of other items nowadays. It's not dumb of Arrington to consider music as a loss leader for artists.
Agreed. It's not an unserious view of intellectual property to say that some creative works aren't valuable in and of themselves (or shouldn't be), but may help drive the value of something else that is.
