Well, it's sort of unrelated, but I was hesitating with the pre-order until today, and by chance I found a newish website I had never seen before called Xanatan.com. They gave me the Standard Edition 25% off with a voucher plus 8 Euro. Ended up paying 21.99 Euro.
I was suspicious at first and contacted their live support to confirm if that was true, but it worked fine. Catch is you have to get their download manager to acquire the Steam keys (you just download it and click a button to see the Steam key). I already activated EU4 on Steam along with the pre-order bonuses, so it looks legit (download pending until tomorrow of course). A good choice if someone is still on the fence.