I recently uploaded a video to youtube, that had been getting less than 50 views per day ,when I noticed the stats shoot up ! What happened was my video has now become the top "related video" for a very popular video and I am getting the views from there. Now over 1000 per day I had not monitized this as it was just an experiment, but looking to do so now ! Just goes to show that you do not always need to rank well to get views.. The views graph is attached.