Price and games the other two parts to the equation. Its good that they are seemingly getting better at hardware design, seems one area that they've been quite poor on in the past, but you can see they've worked really hard on that over the last few years (you can see that in other products too like the surface).
But for me, i've got a big PS4 library, I have a pro, I don't feel hyped for it, I think I'm more likely to pick up the XBOs at some point so my son can play RareReplay. Without a lot of exclusives the power isnt enough for me.