Almost every website with any resemblance of professionalism uses stock photography.
Although it is usually very high resolution, it is so often very low in realism.
Do people actually respond to fake, photographs?
Only your own testing can tell for sure, but one thing’s for certain, if the images on your site are actually unique and speak to your customers, you have an advantage over everyone else.
Here’s my favorite examples of the too-stock photography that we see everywhere!