It looks like Amazon US is now selling a pre-order for a hardcopy of Risen 2: Dark Waters Special Edition for $50 - shipping May 22.

The Special Edition is exclusively for pre-ordered copies of Risen 2 on Xbox 360, PlayStation 3 or PC. It includes alternate box art, the Treasure Isle DLC mission pack and a double-sided poster.

BTW, the pre-order for the hardcopy of The Witcher 2: Assassins of Kings ENHANCED EDITION (which includes a bonus digital comic book, oh boy) is also $50. Odd, eh?

I should probably decide on one of them.