January 2014 NPD: PlayStation 4 outsells Xbox One by a nearly 2-to-1 margin
Gamers only spent $664 million on physical games at brick-and-mortar stores, which is down 21 percent from $835 million in 2013, according to industry research firm The NPD Group‘s monthly report. But the comparison isn’t quite fair since The NPD Group observed a five-week period in January 2013.
