Once a deal expires or sells out, that's that. Period. We may offer it again at a later date. But we promise nothing, we allow no backorders, and we have no waiting/notification lists. Sorry. To the swift go the spoils of the race, or something.
Please note: even when a product is sold out, it may come back into stock later that day: throughout the day, (unpaid) orders are cancelled and their contents are put back in inventory.
HOWEVER: Almost every last Thursday of the month we run a special day called "AnotherDayOnly" where many of our bestsellers make another reappearance. We suggest popping in.