Another interesting point: bandcamp does not in any way prevent users from downloading songs from them for free. A quick "view source" makes it trivial to determine the actual URLs for all the songs in an album, as do any number of standard tools for downloading files referenced by a page. Despite that, they make it easy for people to actually purchase songs and albums rather than just downloading them, and thus people do purchase them rather than just downloading them. They explicitly point out this approach in their FAQ: http://bandcamp.com/faq#steal .