poetry price tags

Um, why is Clark Coolidge's "A Geology" for sale between 288 to 1386 (minus the 7.80 at eCampus)?

What else have I got on my bookshelves that's inexplicably expensive?

Well, at least now I can hawk something, should this unemployment stretch out yet another year....................................

(Just kidding. I wouldn't sell my copy. I don't think. But now I know how those Antiques Roadshow guests must feel, since I bought mine for a dollar...)

Oh, and Structure of Rime is totes high cost, too. I don't get it.