Sounds about right. I used to work at a used book store that gave cash for books. Books were priced at MOST half the US list price, but most didn’t sell until marked down to 7.99 or even 2.00 clearance. So we were told to pay based on desirability, if it was new and likely to sell quickly we paid 30% of what we would put it out for. (So like a brand new release aka within a month or two of its release date) It’s sucks, as a book lover I wanted to value the books more, but after a while you see just how many copies of Twilight, 50 Shades and every single James Patterson novel…. Ugh