Company has been bleeding money for the past 8 years so at this point they can no longer produce those high quality games anymore. Obviously the Vita is a prototypical Sony product, lack of quality first party software with a high emphasis on indie titles. Now PS4 seems to be heading in the same direction, of course it will have the Gods of War and Uncharted and that's about it.
Best to just go with PC at this point if your going to put an emphasis on indie games.