In each generation, there's always one console that I consider to be the "definitive" console of that particular era.
For instance, I know for a fact the PS2 qualified, and I'll always say the SNES topped the Genesis. But in looking at this generation, what will ultimately make the PS4 the definitive machine for core gamers?
I've heard some say the PlayStation Network has long since come into its own, easily rivaling – and in some ways even surpassing – the Xbox Live network, which at one time was indeed superior to the PSN. A lot of people I know opted for the PS4 this generation because they play almost exclusively online, and they've seen how far the PSN has come over the past four or five years. I think they also believe that if they're paying for it, it's a better service by default, but whatever.
Reliability is also a big key. You can't be the definitive console of an era if you keep breaking down (I'm looking at you, Xbox 360). Thus far, the PS4 has proven extremely reliable but then again, so has the Xbox One and the Wii U, last I checked. It might all come down to the games once again, though; PlayStation exclusives are often head-and-shoulders above the competition's, anyway. We're also noticing third-party multiplatform games performing better on the PS4; if that trend doesn't disappear with time, it will be a very good reason to own the PS4, especially as the vast majority of titles released are multiplatform.
What say you?