Check your prices! Seems like the pre-orders vary quite a bit. Apparently for the US, Steam is cheaper than D2D, and it's the other way around for Europe.
For example, I can order the normal edition boxed pre-order for €40,-. It costs €50,- on Steam and €55,- for Digital Deluxe edition. On D2D, I pay ~€43,- for the DD edition.
Maybe wait a week if you're planning on pre-ordering, prices are a bit fishy at the moment.
