I'm currently in the IUP. I didn't preorder but I'm ready to upgrade now. None of my local stores show my config and shipping says Oct.14 - Oct.21. I'd like to get it before a trip on Oct.16. What are the odds that the stores will get more before Oct.14? I've never gotten a new iPhone this close to the release date before.
Very good chance you can get one quickly. Check availability early each morning on Apple store app or website: they refresh the availability each day. Most likely you’ll be able to order for pickup that day when they show availability. The stores appear to be getting new iPhones every day.