The cost of hosting, BW and speed is killing the online porn business and nothing else.
If the most a site could afford to put out as promotion was something like these.
Paul Markham Teens.
Online porn would be worth billions of dollars, and not 1 or 2, more like $20 billion to $30 billion.
Sadly the cost of giving it away for free has hurt this business. And will continue to hurt this business. Even Manwin will get hurt. Because free is so cheap to give away to 100,000s a sale on anything will pay for it. And that anything won't be a porn paysite. Even micro niches will get hit, someone will start a micro niche tube site, if they haven't done it already.
And all the marketing expertise in the world isn't going to change it.