It's always interesting to think of real-world examples like book piracy. On its own, a very small issue. Usually people purchase the physical book, which has to be printed on paper and has value in itself. On e-readers, the price is drastically reduced to compensate for the lack of quality physical material.

In fact I know people who have pirated books in university, the textbook companies gouging the students because they know they can get away with selling $120 books every semester being the main reason. Cheaply-printed paperback copies of the real thing in all blue ink were ordered from India for $25 instead.

If that's hard-line libertarianism then so be it, screw those greedy authors and long live the free press!