But iTunes did succeed. Apple's relentless emphasis on simple, attractive user interfaces, backed by Jobs' steely negotiating power in dealing with music studios, produced a streamlined, curated service with which you could download and transfer music with a minimum of fuss. And we did — even though it cost us money and our purchases were bogged down with DRM that constrained what we could do with them.

It turns out that there is something that can compete with free: easy. Napster, Gnutella and BitTorrent never attained the user-friendliness that Apple products have, and nobody vets the content on file-sharing networks, so while the number of files on offer is enormous, the files are rotten with ads, porn, spyware and other garbage. When Jobs offered us the easy way out, we took it. Freedom is overrated, apparently — at least where digital media are concerned.

I remember the first time I bought an iTunes track, back in 2007. It was so effortless that ever since that day, every song I downloaded was bought and delivered through iTunes.