You have 3 steelbooks, 2 Pokemon Art Academies, 2 3DS cases, and 2 different versions of the Witcher 3. Just wondering why buy multiples?
Why have multiple steelbooks though? Unless you have all 3 versions of the game. But that brings up another question.
Here's the story with The Witcher. Preordered the PS4 CE last June from Best Buy with GCU. They add a pre-order steelbook afterwards, and say the CEs aren't guaranteed to get a pre-order steelbook, so I preordered a normal PS4 version. Kept the CE just in case, because there's 3 different steelbooks, but no one knew what came with what. Find out within a month of release that the Xbone version comes with Gwent cards, and regret getting the PS4 CE.
Release day comes, I get two pre-order steelbooks with my PS4 CE and normal copy. Decide it's more worthwhile to trade in the games and keep the rest, which I did. And ordered a Xbone version through Best Buy OMS, so I don't have to spend $70+ on the Gwent cards. That also arrived with a pre-order steelbook. So now I have no game and 3 pre-order steelbooks, 2 CEs, and all the extras.
So in the end, I got a total of 5 steelbooks, 2 artbooks, 3 soundtracks, 3 sets of wolf stickers, 2 wolf necklaces, 2 gwent decks, 2 paper maps, 1 cloth map, and 2 Geralt statues for $173, not counting reward points.
I don't have a PS4 or Xbone, so there was no reason for me to keep the actual games.
Ironically, the steelbook I actually wanted when I went through all the trouble isn't available in the US. So I still have to find it on eBay.
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Pokemon Art Academy I already explained.
3DS cases from Club Nintendo, cause I had coins and none of the redeemable codes were of interest to me. And I -still- have 800 or 900 coins I have to spend.