globalisateur on 25 August 2018
Yes PS4 will most likely sell twice less than PS2 in Japan in the end. But monetization is much better with PS4. Many people that bought PS2 did it for the DVD player. And there wasn't any online store (and their 30% cut on all transactions) and PS+ services back then.
They'll make more profit selling 11 million PS4 than selling 20 million PS2:
