A friend is selling me a ps vita 16gb memory card for $45. I live in Canada somemory cards for ps vitas are really expensive, and I need one urgently as 4gb isn't enough for me. I will only be downloading a few titles like COD Black ops 2, J stars, SAO lost song Minecraft, Attack on titan and minecraft. Will it be enough? I'll be buying the adapter when it comes out since this is the last over priced memory card I'll ever buy.