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The collectors editions are not limited to amazon I think many retailers just haven't updated their websites/product SKU's to reflect the new item(s) available. I would assume that if you bought the boring edition from a retailer you will be able to get the CE from that same retailer. Me? I am getting the limited edition, the ghost edition is cool but i only care about in game content not that other stuff. I bought the legendary edition of reach ($150) and it wasn't worth it to me.