I bought a big lot of PS3 games on ebay and came across a couple I have never seen. They are not for resale copies of the Ratchet Clank Collection and Playstaion All Star Battle Royale. They came in cardboard sleeves marked not for resale with the games photos on the front. I have never seen them before and there are none listed or sold on ebay. Anybody have any idea where they came from? 

Edit: Never mind I see they are part of an amazon bundle.

Bundles could be an explanation if they're not for resale, alternatively they may be press copies though neither explains why they have no cases. I'd say the bundles are more likely but I'd be lying if I said I knew the answer

EDIT: Missed your edit, seems I was right :)