For those unfamiliar with a "Woot Off" or woot.com....check it out:
Woot : One Day, One Deal (SM)
When an item sells out, a new item is displayed. Usually these items are pretty darn good deals, some are new, and some are refurbs.
On a normal day, Woot offers one product. When it is sold out, you have to wait until the next day for the new deal.