The truth is, many folks with a camera will prefer their own shot of their cat, dog, grandchild, holiday landscape or bird shot - usually overblown to a size that it gets disturbingly unsharp, printed cheap in a cheap frame, or on canvas, or in a worse case, first digitally transformed with some sort of "artistic filter" and THEN printed on canvas - against a photo of anybody else.
And nowadays everybody has a camera, or two.
We are all photo artists.
So i kinda agree with Highway 61's explanation.
You gotta be really, really lucky to get a shot sold to a complete stranger, on the Net.
Moreover, cheesy shots make up most of the demand (and flood the market).
When i was moving into my current house, i bought a print for my kitchen wall. I happened to pass by a shop where it was hanging, a nicely done print of hot peppers and since it's my main spice used in kitchen 🙂, i fell in love with it. It wasn't cheap and it is not from some bigh famous artist, but it helped that it was nanging there in front of me nicely printed. I dont think i would have started browsing the Net to find a shot.
Just these days we are discussing with my wife (yea i got married in the meanwhile, folks!) that we should hang something on our bedroom wall to make it more "personal". It looks nice but it's too much like a hotelroom. But that also means we'll pick something from our own "portfolio". (Probably it's gonna be a panoramic we just made in monument valley - does not fit the couch but does fit the wall, lol).
What i want to say is, what matters to most people when buying "art" is
-personal connection
-big name behind (for the wealthier buyers...)
-decorative enough according to their own taste (or lack of taste)
-tangible first impression (most people still only buy stuff they can see/touch in person, even if found on Internet)
Wityh all this, i wish you all the best of luck and please do prove me wrong 🙂