True Nancy, but even art now has it's place in stock. I think that the reviewers are aware of this. Stock is nolonger just assets for publication. I have already located 15 online shops offering my photos as printed posters and wall murals. These are Adobe business partners utilizing the Adobe App. I think that their customers are looking for art. Still, these assets must maintainn the quality standards.
I did a quick search through my data. I have sold a total of 42 rhinoceros photos. most being sold several times. Of these 42 photos, 23 of the photos were what could be considered artistic (blurred backgrounds, dust and fog, etc.). Meaning they no longer are shown in their natural surroundings. 
Summing up, I believe there is a commercial value for both.