I tell my wife, there is no point shopping on Black friday or boxing day since I don't really see any deals. Some stuff maybe, but for the most part, I think they just raise the price and give the discount and people blindly buy thinking they are getting a good deal. Sometimes people don't look at the price, just the fact that they got a good deal, or so they think!
End of the season deals are the best IMO if you are quick to get them before they run out!