Sony didnt support the system enough(games and ads), mobile ate up a bunch of the handheld market and PS+ is giving away the entire game library. Long story short not enough money in the ecosystem and now 3rd parties are half assing games (Borderlands 2) if releasing them at all. I think it could be saved if Sony gave a shit.
edit:also a bunch of ports with PS3 eating away at potential exclusives, you named like FFX,DIsgaea and Sly
Getting an XBOX One for me is like being in a bad relationship but staying together because we have kids. XBone we have 20000+ achievement points, 2+ years of XBL Gold and 20000+ MS points. I think its best we stay together if only for the MS points.
Nintendo Treehouse is what happens when a publisher is confident and proud of its games and doesn't need to show CGI lies for five minutes.
-Jim Sterling