I have around 40 games already released that I want to buy and around 30 announced titles that I'm looking forward. Considering I have around 250 games including Psp and psone. I have plenty to play till 2021 and beyond. So yeah Vita is the new game gear a console that I loved personally and suffered from similar issues the last child of Sony brought to us.I think people say that due to not knowing the reality of the situation of the Vita. Despite selling badly in the west (and slowly losing sales in JP), the Vita got a LOT of games across indie titles, PSN games and full retail/digital titles.
But most on NeoGaf likely to pick on the Vita due to it being an easy target, so their loss I guess :l.
2020 or 2021 will be the year the Vita offically ends I think and considering the life-cycle of the console (first party support from 2012/2013-2015/indie support from 2013-Present/JP support from 2012/2013-Present), the system should be fine.
Edit top of the page: please do yourself a favor and buy Dracula x chronicles, gurumin, tactics ogre and Jeanne d'arc . for Vita native games give a chance to borderlands 2 if you find it cheap, also resident revelations 2 and buy xcom when the game finally releases.