It shows you that it's not about: price, protection, or availability. Many times it's just because people want it for free and are not willing to part with their hard-earned money.
I also think that most people bought this only because they wanted to prove to the world that it would work (DRM-less and cheap media).
When it becomes a popular thing to do, artists will see the reason why you need to charge a little more+have some sort of protection in the first place. DRM and other protection schemes were invented after the result of mass piracy.
The problem is that whatever the reason is, there isn't any way to stop it (without taking away too many freedoms). It's too late. So, the answer for software is to only make services (and charge a monthly fee) and other industries need to figure out ways to change their business models and use the fact that people will pirate it to their advantage.