I'm not a collector by any stretch of the imagination, but I have purchased a couple of prints from Web acquaintances and have traded prints with a few others. My motivation for the purchases was a strong personal identification with the subject matter, in addition to the excellence of the work.

My impression is that the population of art buyers is relatively small, with buyers of photographs as art being an even smaller subset. Those photographers who have consistent print sales have my deepest respect, as that means they have not only figured out how to market their work to the right audience, but how to do it well.