LuckyTrouble on 13 December 2015
It probably helps that the PS3 has yet to really head towards the graveyard in Japan. They are just starting to move away from it, which has kept fairly consistent software sales at least in one region, even if they've entered decline in other major regions. Even in decline in NA and EU though, with last gen ports still being a thing for many major releases over the past couple of years, there has been a relatively consistent flow of sales from those not yet ready to move on.
It's going to get dicey at this point now that Japan is finally moving towards the PS4, and otherwise last gen ports are starting to dry up in the west. If it does happen, it will be 75% Japan's reluctance to move onto the PS4 though.
