Every time a new console generation comes along, it arrives with fanfare and a promise "to kill PC Gaming" for good. It happened with the PlayStation, the PlayStation 2, The PlayStation 3 and some even lauded the PS4's unified memory architecture as the death knell for the PC Gaming rig.
Here we are, with the greatest Platform there is still going strong decades after the promised 'death' was supposed to occur. Why is PC gaming so popular? I'd say its simply this, the PC is not an off the shelf knock off built to lock you out, the PC is ownership. I own my Machine, hell almost everyone here visiting Toms has made their own. That degree of ownership doesn't exist for any other platform. Our PC's are what we designed them to be. And no one can take it away from you. Long after the PS4 is forgotten the PC will still be there as it always has been, with the greatest and most extensive library of games in existence spanning 4+ decades.