Honestly the only reason I still have my vita is PS+. But I don't play my vita at all because I only have a 32gb card, which is full, so I don't download (or buy) any new games for it.
The mobile environment completely destroyed the vita for sure, but even for enthusiasts the proprietary and super expensive memory card system has done the vita zero favors. Even though its technically superior to my 3DS, I will always choose my 3DS when I travel because it feels like it would take too much effort to curate my vita's card to throw out old stuff and download "good" stuff, so I just always default to my 3DS. Also its so goddamn easy to lose vita carts, and swapping them around on the vita is a super pain in the ass on the OG model.