My kids were teasing me yesterday after we came home from a book sale with yet another copy of Pilgrim's Progress. I think that makes about 5 different editions we have now, including my favourite with Edward Ardizzone illustrations. The one I found yesterday was published by Sears, probably in the 1920s, and is in amazingly solid condition except for a little chipping at the bottom of the spine.
But the kids have nothing to complain about; here's an essay by somebody who has 500 copies, or did nine years ago anyway. [Updated link]
We also found four volumes of Charlotte Mason (we dug around to see if the other two were in a box but didn't see them); Hawthorne's Twice-Told Tales; a book of James Whitcomb Riley's poems (Ponytails wanted that one); a James Herriot picture book; Claire Turlay Newberry's book Smudge; and a nicely-abridged copy of Don Quixote for the Apprentice's school next year. All in all it was a successful trip.