The PlayStation 4 has been one of the most successful console launches to date and claims to be the "Largest Console Launch in History" . The console sold over 2.1 million units sold worldwide. By now we believe the number has being rising ever since its launch.
According to Beyond3D forum, it revealed that GameStop has 1.8 million gamers on a waiting list for the PS4, while Gamestop previously notified their consumers that as of 12/12 they have 400K people on the waiting list for Xbox One.
Keep in mind these numbers are not confirmed yet, they were supplied by a user at B3D. Stay with us, we will keep you updated.