I think it really depends on your local store. I had requested one and hadn't heard anything for about 7-8 mos, and actually ended up getting one in Paris. (I'm located in the States but at a location that seems to get very few options.) I personally haven't ever seen one on the US website but I also wasn't checking all that often.
And even while in Paris, each of the stores had varying availability. GV had many - but mainly in exotics; Sevres advised me to come back early the next day (and it worked out), and FSH oddly didn't have any - both of the days that I asked (and I think they required an appt anyway).