The industry might try to use their lawyers to drive P2P networks out of existence, but a networking culture built out of hundreds of thousands of catalogs would be very difficult to bring to heel. Second, revenue models organized around copyright naturally have very low marginal costs. Once the production or publishing costs are paid, the cost of printing one extra book or stamping out one more CD is very low. These are of course are fine people whose needs should be met, but they are not the whole culture. Finally, it seems critical to a culture that audiences communicate their responses to artists, and to do so in way that is as finely- tuned as possible.
Audiences have to be able to talk to their artists, freely and at length.
They need to be able to applaud. The copyright model makes this hard, because the audience response is mediated by the copyright-owner, which at the least muffles the signal and possibly redirects it altogether. These technical and cultural trends interact. We end up thinking about alternatives like voluntary payments. They are infinitely flexible, and therefore can be configured to be receptive to any sort of user response.