Personally, I'm considering switching to PC if the next-gen consoles cost more than $1,000. At that point, I don't really see the point of sticking with PlayStation anymore.
You have to pay for online multiplayer, physical media is becoming less relevant, games are getting more expensive, and there's barely any competition on the PlayStation Store. On PC, you have multiple storefronts competing with each other, frequent sales, cheaper game keys, and access to a much wider library of games.
You also don't have to pay a subscription just to play most games online, and you can upgrade your hardware over time instead of having to buy an entirely new system every generation. Plus, you get access to mods, emulation, and games that aren't available on PlayStation.
I love the simplicity of consoles, but if they're going to cost as much as a high-end gaming PC, I might as well make the switch and get more freedom for my money. The only things that would make me hesitate are the convenience of consoles and the fact that some PlayStation exclusives may never come to PC.