I liked the Direct, even though new announcement for first party were pretty much all remakes, but since Switch is my first Nintendo console, I loved all those announcements.
Unicorn Overlord looks good. Not many tactics RPGs have scratched the FF tactics itch for me (Symphony of War hits the spot but playing that on steam).
There are third party memory card solutions out there... essentially they hijack the cart slot and allow you to stick in a standard micro SD card to use as storage.
I have two of the standard PSV memory cards (I think a 4gb one that came with my Assassin's Creed bundle, and another 32gb one that I spent like $100 on when the finally dropped the prices into a realm that was at least within viewing distance of sanity), but being able to stick in a cheap-o micro SD card and have ALL the games I purchased (and some extras...) is pretty great.
And because I feel like I'm legally obligated to say this as a Vita owner, hacking the thing was the best decision I made outside of buying the handheld in the first place, when it comes to the PSV. It's way easier now than when I initially wanted to try (and was too scared to do so when the handheld was still being supported), and as long as you follow up-to-date instructions you should be golden.