It depends what you are looking for. I built a gaming rig before I got a PS4 and I got mine used and I cant really complain(outside paying for online). All in all I would say its better to lower your expectations when getting one for its not the jump we saw with the 360/PS3.
Free Step Dodge
Goarmagon
Rezzco9
Oh you have to pay for online? ah thats a bummer.. was just thinking since my gaming rig can barely handle games like GTA V, mortal kombat X etc
Force_of_Nature
Yes.