FYI, I placed my order on Bestbuy.com since I had some gift cards to use.
If you are looking for the 64GB Gray model (MGKL2LL/A) it's on there, it's just incorrectly described as Silver/White. I called after my order and confirmed on their internal ordering system, it's correctly listed as the Space Gray model.
Pick up launch day 10/23/14 here in Chicago.
PS - Was also able to sell my 64 GB Air 1 on CL for $400 this morning after listing last night. It was an unused warranty replacement from Apple so it was MINT. However, people will soon learn they can get this for $389 refurbished with a full 1 yr warranty.