Sometimes you just get lucky.
I managed to acquire this haul for free, from a very nice gent who was selling his home, moving across the country, and didn't want to be bothered hauling boxes of books with him. This was someone who said they had 75 S&S books to give away, but I was thinking I might be wasting 2 1/2 to 3 hours on a round trip drive, if the "S&S books" turned out to be fat fantasy/Harry Potter/etc.
Instead, it turned out to be a jackpot. I told the dude that rest assured, his books were going to a good place.
Presented here for your viewing pleasure.