After stalking this bag for what seems like forever, I finally snagged one for myself. The cognac version is no longer available online -- as of right now, anyway -- but you can still buy it in black, navy blue, or stone.
And PS -- if you're as stuck on the cognac as I was, don't panic. I'd be very surprised if they didn't re-stock this hue in the near future. In the six months that I spent obsessing over this bag, this color sold out and then quietly reappeared at least five times.