Why Popular Video Game 'League Of Legends' Is Bringing In $1 Billion

Riot Games, the company behind "League of Legends," has a very unconventional business model.  "League of Legends" -- which is basically like a more-complicated video game version of capture the flag -- is huge in the e-sports world. In January it boasted a staggering 27 million daily active players. And it has around 67 million active monthly players.   At the 2013 championships, thousands of fans gathered at the Staples Center in Los Angeles -- and millions more gathered online -- to watch a...