the PS4 is really just a PS3 with updated hardware, barely any next gen features, Next Gen is no longer just about better graphics.
I own a PS3, PS vita and every playstation product known to man down to the ps eye and ps move and the gun accessory bundled with socom. And I own all their 1st party games which imo are only good for single player aside from Killzone..which is just ok multiplayer...personally i'd rather play Battlefield. And I subscribe to Playstation Plus.
I do not like Sony's services, yeah PS Plus has some great free stuff as long as you subscribe, but Sony doesn't have great services, their dashboard is the same dull PSP looking dashboard since launch 8 years ago. Every single time I turn the damn thing on I am stonewalled by a firmware update to download and install, for years I had to leave a game to dashboard in order to view text messages from friends, until they finally changed that. Online is laggy as ***, voice chat is laggy as ***. PS network was like a ghost town because all my friends preferred to play on their superior Xbox Live.
They still don't have party chat, they didn't have achievements until they decided to copy Microsoft and then after a couple of years they finally had trophies. their controller is *** for people like me with big hands, stick layouts suck imo. Playstation Home was a failure, their online multiplayer was down for months when their entire network got hacked resulting in many people's credit stolen, and their latest firmware update just BRICKED our consoles.
If you've never experienced the other side its easy to say the grass is greener, but trust me, it's not. There's a lot of weeds over there on the Sony side with lots of dog shlt.