Convenience Is King

Most of the time, simple reasoning makes the most sense. If the entertainment industry would just use this thought process I think they'd be much more successful at marketing their wares.

Make it more convenient. And people will pay for it. Duh!

Arnold King nails it:

It really is simple. If you have the most convenient distribution system, then you do not have to worry about somebody "stealing" your songs, or you movies, or what have you. People will pay for convenience. On the other hand, the more you try to "protect" your content, the less convenient you make it, and the less revenue you are likely to earn from it.