I would think as a day one owner you would have realized at some other point during the nearly 3 years the Vita has been out that it has never had a strong let alone good retail presence in any brick & mortar stores (except maybe GameStop). You might have also realized that the majority of games (about 3/4) that release on the vita are digital only and many of the physical releases are those limited editions that often have very limited ways to get (like only on certain websites or stores) and often sell out fast.
So claiming the vita is dead because of brick and mortar retailers are not stocking many games or are dropping the system makes no sense in the current market. Brick and Mortar stores hardly carried any Vita games during it's 3 years so far anyway. Yet as far as Physical released games go, Vita has more games on it than WiiU, about the same number as Xbox One, & about 38 less than PS4. 3DS has a little more than twice the physical games, but it also has a boat load of shovelware garbage games... if you compare quality for quality it is pretty evenly matched. Yet you think it's dead? If anything is dead it's your enthusiasm for the platform. I mean why else would you go out of your way to interrupt discussions about finding vita games to rant about the system being dead? Ok sure we aren't getting new physical games every single week on the Vita but no platform is getting new games every single week physically anymore. The market changed years ago away from that which is why most of what you see on store shelves are older games and shovelware.
I've certainly felt the same about systems like you currently seem to feel about the Vita. Best advice I can give is, play more games. There are about 550 vita specific games on PSN... 144 physical releases in North America... a boat load of PS1, PSP & Minis on PSN.... plenty of unique import games (some of which have English subtitles)... I think there are well over 1000 unique games to play on the system (not counting the defunct PS Mobile market). If you focus more on games and less on retail shelves maybe you'll see the system as being a little more alive. Especially with near weekly new games coming out in digital form for the platform.
If you need more to look forward to,