Yeah both numbers for either systems are the same retail/customers.. And they still do that with current gen numbers. Id probably think you could thank the japan market for backing the ps3 tho, I believe that was their largest market.. Unlike the ps4 numbers, US has it as of right now. But a current 3:1 ratio is a big difference considering the ps3 life span isn't completely over till the 2015 ps4 game line up.