Holiday shopping has become a bit of spectacle, hasn't it? Between the rise of Black Friday sales and the mass hysteria that can ensue over "it-gifts", it's not hard to see how you could get a sort of disturbing, secret enjoyment about watching the world's mad dash to buy the right presents. For some of us, though, watching simply won't be enough... Which is why a couple of UK-based online bookies are setting odds for what video game will sell the most copies this holiday season. Of course, the odds heavily favor Call of Duty: Black Ops II. With Call of Duty games winning the holiday race for the last three years, how could they not?