I think EatCarbs was talking about the "in-store" preorder where you pre-order from the local shop and then go pick up your reserved copy on release day. Assuming that is what he was talking about, I agree that it's probably pointless considering there will be a bajillion copies of WoW:Cataclysm on the shelves. Smaller towns or rural customers I might see wanting to do that just from a limited availability angle.
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