>>81784949 (OP)
it's not. i was on a porn site and saw several 30 minute jav vids. porn vids are long because they have to fit everyone's favorite position into the scene
They're works of art for perverts who like watching Japanese people have sex. That shit is a movie. >>81784966
then they can charge you a reasonable amount for one coom
in my experience I would have the scenes I like then