What memory card size should I get for my PS VITA?

I got a ps vita and now I need a memory card. I don't wanna pay more than I have to. I probably will get a 16gb since 80 bucks for a 32gb is quite a lot. I plan to buy all my games in retail, so I won't get full on ps vita games off PSN. However I do plan to get minecraft, terraria, and spelunky. Is 16gb good for that plan? Or should I invest in a bigger memory card?

I think 16gb is more than enough, especially if you buy most of the games retail. I almost only have digital games, but I found it good enough too.

If you're just buying retail, then 16 Gb should be enough. Take a look at the games available on the PSN store though, lots of goodies there that you won't find in retail stores. There's also the free PS+ vita games and sales every month.