Well if you look here: http://www.dhgate.com/32gb-micro-sd-memory...2b3eff097d.html or http://www.dhgate.com/1-pcs-lot-hot-new-32...55616e1955.html (if you want 1 32gb microsd card.) You can get 32GB micro-SD cards for about $13 each with SD and mini-SD adapters, or $15 with just an SD adapter. I'm not sure if the 3DS is compatible with cards of that capacity. Nevertheless, here's a reference to what has been done with the Wii recently: http://www.nintendo.com/consumer/systems/w...ncedStorage.jsp Basically, they added support through a firmware update for larger SDHC cards, up to 32GB cards, which is awesome. I can't see why now the 3DS wouldn't be able to take advantage of 32GB MicroSD (with SD adapters) cards in the future. From what I read, Nintendo's current games are around 2GB total, as that's what they said their "first generation" of game cartridges would be able to hold. Later games, they announced, could go up to 32gb. $12-15 for the ability to hold at minimum 4 later generation games at a time is awesome. When 3DS flash cards eventually come out, data could very well be cheaper than is currently is, and if you include that fact that you'd still be able to enjoy original NDS games, older consoles (pre-n64) and possibly GBA games, you'd be able to get some MAJOR use out of even a single 32GB Micro-SD card for the 3DS. I suppose another issue is whether or not said Micro-SD cards will be going into the flash cart, or if the flash carts would be primarily working as an intermediary to emulate the 3DS (and other systems), and would be able to access the SD slot's files, or if it's going to be like traditional NDS flash carts which are equipped with a micro-SD slot for data access.