Does it offend you when publishers are so fricken lazy like this? Dipping over and over into image banks, reusing the exact images... Don't the design people yearn to create their own visions of books? I love that you do this--sort of calling them out on it... maybe not enough people read for them to care
There's probably a money/time thing that happens. Also, a lot of time I don't think they are aware how common the image is. Or maybe they figure it's common, but people like it?