That's probably true. Of course, she could always offer to pay at a discount, with the seller compensated in cement overshoes if he does not agree.
Besides, I would bet there are a lot of liberal idiot booksellers that would take a hit on revenue in order to see the Beast sell out.
And the libs may take this as a personal challenge, like Terry Mac buy them with DNC funds and handing them out on the 2004 campiagn trail..