The closest I get is vintage photographic postcards which are either advertising or quirky in some way. I also tend to got for books of photography as I enjoy reading about the work as well as seeing it. I confess that all the pictures hanging in my home are paintings of some sort on a variety of materials such as silk.
I agree that the number of artists making a living purely from their work is a very small percentage. Most also teach or earn their crust working in related area's, I suspect nothing has changed throughout history.