Some of you in this thread will be surprised to discover exclusive games aren't the system sellers they used to be.
Current generation consoles are much more "mainstream" than ever, which is why I feel we are seeing mainstream multiplatform games garner the biggest sales.
These current generation consoles are being adopted at a nearly unprecedented rate too, which reinforces the argument they are pushed by mainstream multiplatform software for a mainstream audience.
As this thread reveals, the PS4 is doing about as well as the Wii, in terms of sales, and I don't think you could find a better model for mainstream success than the Wii if you tried.
That said, I truly believe that the PS4 will have better long term legs than the Wii, whose end of life sales parachuted off a cliff at the end.
First of all, and most ironically, the PS4 has tons of games, nearly 300 of them only 18 months after launch. For those not paying attention, this is actually the fastest growing library in console history.
Most importantly, even with all this "casual gamer" success, PS4 most likely won't be abandoned by the hard core Neo-gaf type the way the Wii was.
For one, PS4 seems like it will be the only current generation console with any decent amount of Japanese software, which traditionally attracts the hard core like flies to shit, so to speak.
Also with the lions share of serious fighting games, PS4 will certainly have tons of support from the fighting game community, who are as vocal and hard core a group as you will find anywhere.
In other words, the PS4 is a true PlayStation. It is not FPS-heavy or sports-heavy or rpg-heavy but has a very large and diverse mix of games and, unlike the PS3, it's affordable from the start.
If you sit back and look at it from this point of view, it's not surprising to see these massive sales continue for this platform