I’ve been trying out Rune Factory 4 for the past week or so. It’s a decent farm sim, with some story & RPG mechanics mixed in. It kinda reminds me of a worse Stardew Valley (farming wise), but with more story, less lore, and more interesting combat. Not a bad game, imo — great to pass some time.
I’ve got a 128GB in my 3DS and a 32GB in an Acekard2i that’s shared between the 3DS & DSLite.
I don’t need either of those cards to be as big as they are, lol. Those cards had just happened to be big enough to fit my roms & not otherwise used in anything, so they’re what I used.
I imagine an avid user could still easily get by with just a 32-64GB 3DS SD, and a 4-8GB SD for a NDS flashcard.
Edit: Oh, and my GBA flashcart’s SD size is still somehow absurd for the amount of roms it has on it, while still only being 4GB in size.