You might never have heard the term "Toys to Life" but it's the sub-category of the games your kids are asking you for: The Skylanders, the amiibo and the Disney Infinitys of the world. These games have taken flight over the last 3 years and have turned into a multi-billion dollar industry. In fact, the Skylanders franchise has moved so many games and figures over that period that it's now one of the most profitable video gaming franchises in history. What's behind the appeal of these for not just kids, but adults too? Let's take a look at some of the possibilities.