Yeah. Businesses are always crazy like that trying to get you buy more and then some. I think it's something like 50% of all retail dollar purchases are spent on/for christmas. So... they have good reason... its their only truly good time
Best christmas deals are always towards the end of christmas while stores try to clear out overstocked items they antipiated would be hits... the more they sell early, the more cash they make.
I agree though, it's a little weird how they push us to do christmas early... just shows how much of our society revolves around business.