They are "limited edition" in so much as when they run out they run out. They are not continally replenished unless BAB decide to release the bear again. I would guess its possibly they have simply come to the end of the stock on these guys. They may well still be in some stores but centrally none will be available. BAB have released a few of them more than once (Dash and Pinkie especially) so its possible, if popular enough, they will turn up again.