Well, they're best off ordering online not because of "stuff like this" but that hopefully they have much better things to do with their time than standing in line and dealing with chaos when they don't have to. For whatever small savings I might find on Black Friday I can't imagine going through the hassle.

If one's time is effectively worthless (which may be the case if one is unemployed or a student), one might be able to get below-cost deals by camping out by a Best Buy for a day or two in advance. But one should only do this if there is really nothing better to do, or if the recreational enjoyment of the event (perhaps by camping out with one's friends) makes it worth it.