I love art books and a cloth map would fit very nicely on our living room wall. And there is no such thing as too many dice - but 260 € is more than I can afford right now.
I wish there was a possibility to buy items separately, and long term, in a shop (I know, this is not the purpose of collector's editions, but it would be very nice).
One thing that I am most interested in is not included: I would really like to buy the full game soundtrack, I think it is one of the most beautiful video game scores, and definitely my favourite.
I hope we will be able to buy the OST on Steam, once the game is fully released.