While the PS Vita has been struggling to gain a foothold in the west, it's fairly successful in Japan. During an interview on 4Gamer Sony Computer Entertainment Senior Vice President Masayasu Ito talked about the situation of Sony's portable:

"At the beginning the PS Vita did not resonate with age targets under 20, but now the situation is changing and the popularity with younger demographics is increasing. Minecraft: PS Vita Edition has provided a boost.

In addition to that, a variety of third party  games is also planned for the future, and in order to further accelerate that flow, we decided to release new colors for the PS Vita this fall."

Asked on the first party situation, Ito-san explained that Sony isn't developing any games on its own, relying on third parties while internal resources are shifted on PS4.

"Currently, first party studios have no titles in development for PS Vita. Since third parties are working very hard on PS Vita, SCE's own strategy is to focus on PS4, which is a new platform."

Personally, I love my PS Vita, but it's hard to contest that the strategy of focusing on PS4 to solidify its position further in the market is a sound one. Luckily, third party developers keep delivering for Sony's portable, and hopefully we'll see more of the many Japanese PS Vita games localized to quench that thirst.