I can feel it. It's out pacing the 360 by 3-4 million or so in the United States, I firmly believe this generation will be the same length as the 7th generation, and I feel the PS4 will just be extremely popular in North America. The price hasn't dropped yet and it is still doing very well. I think by the end of it's run, the PS4 will be $99.
50 million or more.
PS2: 53.65
Xbox 360: 48.30
Wii: 45.37
PS1: 38.94
NES: 33.49
PS3: 29.06