Pyro as Bill said:
512GB for the size of 4 micro SD cards, with double or triple spinny disk transfer speeds. I'd pay that just so I can play games instantly rather than having to wait until Day 2 for a 'Day 1 purchase'. |
Eh, that seems like a pretty extreme setup, and people complained that Vita memory cards added too much to the cost, lol.
To be honest I don't think this will be as big of an issue because a lot of those mega-huge AAA type third party games are not going to be on the NS anyway.
So if its mostly Nintendo games, 3DS developers, and Japanese devs, along with lower-scale Western games ... a standard memory card should be OK.