I hope that the order that I've made through Office Depot is fulfilled. I made it on the 28th and confirmed it via phone minutes afterwards; there has been an authorization hold on my account for the funds since then, and the customer service representative with whom I spoke told me that it's scheduled to be delivered on October 7th. It's currently still in the "Processing" phase, which will - hopefully - soon transition into the "Shipped" phase.
Via Reddit, I've learned that other people who made orders through Office Depot had their orders canceled up to a week afterwards or while speaking via phone to a customer service representative who happened to notice that the item wouldn't be in stock for a long time. Neither has happened to me so far; contrary to the latter experience, I spoke to customer service for a second time, a few days after making the order, and was assured that the order will definitely ship.
Ugh, trying to get one of these cards has been frustrating. However, this generation of cards is the first one for which I've tried to get a SKU at release or very soon afterwards. On the other occasions, I happned to be building a machine or seeking a card in between releases or - admittedly - had the patience to wait (i.e. I waited three months after the release of the 1080Ti to upgrade to it from my 980Ti).