Get a PSP 3000. Here's my reasoning:
- It's cheaper than a Go or Vita.
- All PSP games are available on UMD, but not all are available for download.
- You could always buy a large memory stick and download games (which is cheaper than on Vita because of its proprietary memory cards).
- All PSone classics can be downloaded to PSP.
- Ellyn already said she has no interest in any Vita games.
I also asked my friend (who owns 62 PSP games, many of which are rpgs) which PSP rpgs he would recommend. He said:
Riviera: The Promised Land*
Hexyz Force*
Knights in the Nightmare*
Yggdra Union*
Final Fantasy I, II, IV Complete Collection, Dissidia 012 [Duodecim], Tactics
Half Minute Hero
Persona 1-3*
Legend of Heroes: Trails in the Sky
Ys 1, 2, 3, 6, 7
Kingdom Hearts: Birth by Sleep
Monster Hunter Freedom Unite
Gods Eater Burst
*All these are on sale this month on PSN.
Many PS1 rpgs are also available as classics, including FF7-9, Chrono Cross, Vagrant Story, Xenogears, Grandia, Wild Arms 1&2, Suikoden, Parasite Eve 1&2, etc.