It never ceases to amaze me how much some members underestimate the holiday sales.
You have to remember that historically a console will see 40% of its sales for the year in Nov & Dec. Its actually fairly rare for a console to see Nov & Dec sales that aren't within 38-42% of their Jan through Oct sales.
Even last year when people explained this folks were still far too pessimistic. I think perhaps you just have to see it to believe it, so pay attention this year and remember it for next year please =)