North America Gamestop does have it for pre-order. You just have to walk inside the store and inquire about the Collector's Edition. My proof: today i walked in to my local Gamestop store here in California and made a pre-order. But you're correct also, their website doesn't show it. Maybe it hadn't been update it yet.
for security purposes, i'd white-out the store location and my name. Hope you understand.