“Free” may mean many different things depending on the context. Since no tube site will provide you 4K Ultra HD quality for free, this means fuzzy movies, no downloads, advertisements everywhere, cut vids that finish the second the man is about to shoot his seed into the woman’s mouth, and bad quality. When you buy, you may stream video in greater resolution (as high as 4K Ultra HD), download as many as you want (and keep them forever, since they’re DRM-free), and watch whole episodes and movies. Don’t you dislike seeing a movie clip instead of the whole thing?