So why on earth would you consider it now? I seriously don't get this "argument".... You will leave behind the PlayStation ecosystem and all the games you've got to jump aboard PC gaming. Even if you already have a decent gaming PC the cost of a significant upgrade to your rig (a new GPU being the primary option for that) you're looking at about the same cost as upgrading that one component as it will cost to trade in your PS4 and upgradeto the PS4K. Nevermind everything else. And if you need to buy a new gaming PC to get you started then that money can easily buy you a PS4K and PS5 when that eventually comes out which will sustain you in up to date gaming for probably the next 10 years.
To be honest, those saying they'll jump exclusively to PC gaming probably don't care about console exclusives or were probably on the fence anyways. This bit of news probably just pushed them over that edge.
I personally can't imagine not having these systems; there are simply too many games I'd miss out on by ditching consoles.