While this is true I would recommend choosing just a few of your favourite games from each console, in which case you can probably fit your all time fav games from every Nintendo console on a 256gb SD card, and probably a 32GB for all you faves pre Wii.
As someone who has an overwhelmingly large ROM library, I often find I have nothing to play because my library is too large.
Yeah, that’s a good point but I am very skeptical that Nintendo roms are going to be lost forever. Some of the popular sites are getting hit, but this has been happening for decades. Soon enough there will be a new site that makes it easy, and there will always be Usenet and private trackers that are far more robust.