serious games eBay auctions you should keep an eye on:

Serious Games Development And Applications: Second International Conference, ...

$82.20
End Date: Friday Apr-27-2018 19:01:22 PDT
Buy It Now for only: $82.20
Buy It Now | Add to watch list

Serious Games Development and Applications: Third International Conference, SGDA
$91.92
End Date: Monday May-14-2018 18:44:32 PDT
Buy It Now for only: $91.92
Buy It Now | Add to watch list

Serious Games: Mechanisms and Effects by Ritterfeld Ute (English) Paperback Book
$83.90
End Date: Friday May-11-2018 18:55:21 PDT
Buy It Now for only: $83.90
Buy It Now | Add to watch list