Had PS Vita on launch and although the system was generally good. The memory card issue was real. It was just too expensive because if you wanted to go digital. They should have dropped the price of their own cards. Additionally many games still had some form of installs even if you had the cartridge so space was gonna be used regardless. Screen quality (OLED) was amazing, controls and feel were quite good.
When it concerns games people expected probably a similar library as the PSP. However there was nog GTA (albeit smaller version), there was no Monster Hunter and Sony's first party releases after the initial 2 years were very limited.
The name PS Vita didn't help. PSP 2 or PSP Pro would have been a much better way or something in that line would have made it clear it was a sequel to the famous PSP.
Stories unfolded with my home made rap songs. Feel free to listen here with lyrics: https://youtu.be/vyT9PbK5_T0