That they don't have.
http://investmentwatchblog.com/the-triumph-of-materialism-the-average-american-will-spend-830-dollars-on-christmas-in-2015/
And I will spend a big fat ZERO!!!!!! The last time I spent anything on Christmas was when I used the day to buy an impoverished co-worker an electric blanket that she needed. I was in my early 20s.