The thing I tend to think is not what would interest other people, but what interests me. You can't please everyone, so trying to make videos that please "everyone" or "a large audience" isn't going to be a sustainable way of making videos. Since it's all just you and your camera, you have to figure out not only what you would like to see, but also what would be fun for you to make. Do a quick association..."If I had to film something right now, and I'd have a blast doing it, I'd...." and whatever comes to mind, use that.
I think we concentrate way too much on trying to gain an audience, which is important, I know, but if we're just chasing after views, a great deal of the joy of creation is lost, and I think that is a shame.