Don’t me to sound like a prick (wait… maybe I do). I used to manage the EB over on Transit and I still talk with a few managers of the old EB locations. They will NOT be able to fill all the preorders taken today at launch. The other fun nugget of info I got was this: Despite the fact that you might have ordered the premium system, they cannot guarantee that they will have those systems.
Its quite common to presell more system than they will get. This ensures that if someone doesn’t pick their system up within 24-48 hours after launch, they’ll have a list of people foaming at the mouth to get one.