The production values. The early big-feature porn that was shot on 35mm film can't be beat for it's production value. If you could take that kind of quality and then combine it with today's styles porn would be super. Since most stuff now goes direct to video, too many producers are taking the cheap route, and it looks it. How many times can you see camera cables, actual cameras, and other behind the scenes works that take away from the dynamic of the on screen-sex.