If Sony will keep releasing their SP games on PC, while at the same time won't jump onto MP/co-op bandwagon, then there will be IMO less and less reason to ever own a PS console. Those story-driven games can wait since they never get outdated, if the plot and gameplay are good, they'll still be good a year or two later, if they suck that means they sucked already when they launched on consoles. And you don't have to beg for 60FPS patch, hell, you can even go for 144 if your rig can handle it.
I think Sony should really start thinking about games made for MP and Co-op, with the games being PS+ exclusive, so that there's a certain playerbase and games really not present elsewhere, and you would really want to be there on day one, to not to miss out/fall behind. That would hook up people to that ecosystem/service, and Sony wouldn't be giving them away for for free like in typical F2P model, but actually earning each month from the subs, and encouraging more and more people to subscribe. There are already 50M people on the service, so just think about the potential playerbases for online games, and how much more revenue the service would bring with even more people on it.