Just installed a microsd card of 128gb. (read +/- 85MB/s, write +/-35MB/s). I paid 30.
Anyway, what i wanted to say, is that it's very unfortunate, that there is no way to move downloaded games from the 32GB internal memory to the SD card. I needed to empty the internal memory in order to be able to play Minecraft (it needed additional space in order to boot). So you basically have to "archive" a game (which means you delete the game, lol), and then when you download it again, it will automatically download to the microsd card.
That's... cumbersome and tedious.