Ok, it's two different aspects of retail. I realize, of course, that Barnes & Noble isn't going to pay anyone to sit in their back room and proofread new books that come in.
However, I can't let this pass. Quality control is indeed part of a retailer's job. I've worked in retail longer than I care to remember, and limited quality control is something I do every day. I check dates. I check seals, and the "look" of the product before it goes on a shelf. Even our teenage stockers do this.
I agree with your check-back system. That would help, tremendously..