Games.
There were half a dozen games out htat I wanted to play and at least a half dozen more that I really wanted to play that were coming out.
Thus I bought the system. When the same holds true for PS4 or One, then I will also finally purchase one of them. I dont' buy a system for 1 or 2 games. And considering most games I want to play on ONe/4 I can play currently on my PC or 360/ps3, they are not on my radar.