You are correct, a normal woot is one per night, then when it sells out, it's done. A woot off is a constant stream of products for usually well over 24 hours(longest i can remember is around 72). So much stuff, so great. And if this is true, for the 5th straight time, the woot off starts on my 2 days off. That's a happy BB4L, but a sad AmEx.