My view..
Those who make content sell it themselves.
Those who used to buy, now mostly " buy" stolen stuff or endlessly recycle millions of clips sold by other thieves.
Very little room for a legitimate content maker and licensor. Just look around here. 3,000 videos for 200 bucks ( not one video ALL 3,000 !!!! ), how can you compete with that. But there is a way for a content producer to make money without having his own site. So be selective