Some recent game design auctions on eBay:

Game Design Perspectives by Francois Dominic Laramee

$3.99
End Date: Monday May-7-2018 14:18:44 PDT
Buy It Now for only: $3.99
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Game Design Essentials
$17.14
End Date: Saturday May-19-2018 2:27:49 PDT
Buy It Now for only: $17.14
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Game Design: From Blue Sky to Green Light
$4.15
End Date: Friday May-18-2018 7:04:24 PDT
Buy It Now for only: $4.15
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Game Design by Bob Bates and Robert Bates (Paperback, Revised)-#100
$29.22
End Date: Tuesday May-1-2018 17:29:52 PDT
Buy It Now for only: $29.22
Buy It Now | Add to watch list