Arstechnica writes:

Combined, US sales for the Xbox One and PS4 are up 80 percent compared to the first nine months of sales of last generation’s Xbox 360 and PlayStation 3, NPD said. Those consoles sold a combined 3.82 million units in their first nine months in 2005 and 2006, putting current combined US sales of Sony and Microsoft’s new consoles at around 6.87 million.

Even as someone who loves his PS4, I continue to be surprised by how fast both it and the Xbox One are selling. I figured only the more passionate gamers would translate into early adopters, but I guess public appetite for new game consoles is much greater than I (and many others) thought.