So I've had the 3900X in my Best Buy Saved Cart for a while and watched as it went into and out of stock, mostly not even letting me attempt to check out with it and then error out the few times it did. Yesterday on an error out I noticed a popup dialogue that said to order the item in-store. Additionally, there was a 10% off coupon for any regularly priced item sitting in my Offers section in my My Best Buy profile online. Went into the store, had the 3900X ordered and attached the My Best Buy/rewards profile which automatically brought up said 10% coupon. $449.99 and it already shipped today for arrival on Tuesday. I was also sent a 10% back in rewards coupon for using the Best Buy credit card, which stacked... Anyways, YMMV but if you've got the coupon it's worth a shot. Hell, it's worth going to order in-store to get one at retail and not the price-gouge eBay prices. Enjoy.