Guess I ended up canceling my order from amazon and found it at a local store for an even better price. I couldn't resist...
Here is a side to side comparison to the Crysis 2 Nano Edition:
As you can see the box is HUGE. They are the same height and leght, but the Nano edition is wider and that's about the only difference in size.
A top view:
EDIT:
WOOT I am even FAR more surprised to find out that the headgear is produced by Branpresto and it includes a numbered certificate of authenticity. There are only 5000 of these editions around. Despite the high price I totally underestimated this edition now that I understand its value.