most of general tgps have a category as a movie or video. Some of them have a subdirectory ( for example - group and group movie ). Niche you post is a movie (video) or [niche] movie.
Unfortunately, as i have the analysis of traffic on mpgs only for last 2 months, i precisely enough can not approve, that i'm right. But with pics galleries always it is less than sales, than with movie if the question is about such large tgp as thehun
or al4a