Before everybody jumps to conclusions, GreenMarine did you actually get pictures of the back prior to shipping?
The one thing this thread makes clear is not everybody is concerned with this. I am personally pretty careful with the ends, but a lot of people would just look at that as normal wear and tear. FWIW when I do a photo dump for a game I am selling I take pictures of everything I can, including the back. I don't want people to be surprised even when they are picking up in person.
Whenever somebody tried to explain to me they have a "mint, 100% working game" I try to nod and smile, but really every game has some physical and or/mechanical issue. Be it a rarely seen bulb out, flaky switch, whatever. Or, "bottom scratches" 
