FYI, you can dump your game onto a PS3 or PC if you need more space. Saves you from having to re-download the games. That's if you buy digital, of course.

Freedom Wars and Persona 4 Golden. very good choice OP.

Check out these:
Ys: Memories of Celceta
Danganronpa 1 & 2
The Legend of Heroes: Trails of Cold Steel 1 & 2

nothing wrong with Vita. It's a lot like the Wii U. Not bad, but definitely underperformed.

You'll find a lot of nice games. Just prepare for a pricey memory card if you want to go all digital.

I only buy physical, so that won't be a problem.

I might get the PSV versions of the games, it depends on how much the PS4 version is improved upon it (I know that 999 is supposed to be a complete remake, but that game wasn't on the Vita in the first place). I'll probably buy Corpse Party for the 3DS, I actually have the original Japanese version on PSP, but my Japanese isn't very good so I can't really play it. I also may get Steins;Gate for it, because unlike every other console I own I can't really use my PS3 whenever I want.

I've heard of Trails of Cold Steel, but don't really know anything about it. Is it a turn-based RPG?

Turn-based rpg with an active time bar system while moving anywhere on the field.

OK. I always get confused because there's apparently another game called Trails in the Sky, what is that?

Cold Steel takes place 2 years after Trials in the Sky, and refers to events that happened in it.

Congrats, enjoy your purchase

Try Tales of Hearts R and Daganronpa