because the market is dominated by nintendo. sony had to learn this - possibly vita can become a success. but especially vita will have to survive the market while smartphones get more and more powerful - both processor and graphics.
i don't want to see the market for mobile gaming consoles fading but in my opinion sony has to push the vita *a lot* to make it stand up against the mass of competitors. the 3ds is another story - it is not high-tech hardware and never wanted to be. it sells because of (nintendo) games and obviously, this strategy was, is and will be nintendo's key to success.








