Upon close inspection, the SteelBook has several minor dings on the back, probably caused from being rattled around inside the box during transit
Here's a picture so you can see what I mean:
There's one on the left-hand side towards the top, and two others along the bottom edge (one on the blue section, and another on the green section)
Looking for any kind of offers on the SteelBook at this moment, and willing to let it go at a reduced price due to the dents