Giving away for free it is the future not only in adult (see myfreecams, chaturbate etc.) but also in mainstream. For example see the freemium in video games:
http://blogs.wsj.com/digits/2014/02/...reemium-model/
No one let you pay in advance for download and play video games anymore, hardly pay in advance to watch nude live cam shows, and so why one should pre-pay to watch a prerecorded video? All is given free, then one every many will buy something for some reason, perhaps a strange reason.