Your logic reminds me of a scene from Black Sails:
https://youtube.com/watch?v=OjAyw80RjjQWhile I get where you are coming from, the case law does not support your argument that money damages should be lowered because there are lower priced alternatives. Think of it this way, let’s say you own a white Mercedes that sells for $75,000. What would do you think the judge should do if a defendant who stole it and demolished it said your white Mercedes does the same thing as a $10,000 white Honda Civic, and therefore he should only pay restitution of $10,000?
Hopefully, that helps explain why if there is licensing history that supports the plaintiff’s price, the fact that you do not appreciate the difference between the plaintiff’s image and a lesser priced image will not cause a judge to reduce the award of damages.
As far as the example you chose, I do not know Tom Schwabel, but it is pretty easy to see that he is a legitimate professional photographer and not a hack or an “extortionist,” especially if he is only asking for a couple hundred dollars for someone using his work without a license. The guy’s photos are amazing and he travels the world to capture impressive subjects. He is represented by three different agencies. He also puts copyright notices his images. Frankly, I am surprised he is only asking for a couple hundred bucks when he finds someone using them without a license.
My guess is there are unsuccessful photographers who make more on enforcement than they do on actual sales, but I disagree with the conclusion that any photographer who demands compensation for use of their images is a hobbyist or part-timer. Many big name photographers and agencies are aggressive and even over aggressive in their efforts to collect from those who use their work without a license.