Recently with alot of peoples predictions, they said they think will think PS4 will sell over 100 million units
While I admit, the PS4 is doing great but if you look at the sales of the PS3 it was selling 150k every week and that didn't even do 90m, plus it was on the market for 7+ years
The only way I think it can pass 100m is if it is on the market for 9+ years and continues to sell after the PS5 comes out