Nintendo, bring back ROM cartridges! We have advanced enough now in solid state technology that this is inexpensive. No more installing console games or loading screens! Go back to the roots of what console gaming was all about. Add in to that an inexpensive x86 solution and gpu that can do 1080p and its a winner.
don't forget sandisk just developed a 200GB micro sdxc card that will be officially on sale quite soon. I know my 128GB in my galaxy note 4 is getting switched to 200GB ASAP
There is simply NO reason to do this. A far more sensible and versatile approach is what Sony uses on the Vita. Generic flash memory that can be mass produced and not committed to a particular game until very late in the process.
Mask ROM was the only game in town for a long time that met the needs of the console business but had all kinds of hassles, especially the commitment required for production runs because changing masks was a huge hassle. One of the reasons optical media was so favorable wasn't just the huge capacity gain but also because a CD production line could stop on a dime and switch what content was being put on the disc. Flash memory cards have the same advantage.
But even those are a dying breed. My experience with the Vita has shown it is far more convenient to have a high capacity memory card to store a whole library. The Vita's memory cards are severely overpriced due to the problem of convincing retailers to sell something that will cut them out of future software sales: you have to give them a very good profit margin. But more standard flash memory formats are more affordable. 128 GB microSDXC cards are frequently down to $80 now and should get a lot lower towards the end of the year. Currently the only limit in the New 3DS for supporting such a card is Nintendo's refusal to license exFAT or implement an open source file system and give the 3DS the ability to reformat the cards. Right now to use greater than the 32 GB cards requires reformatting in FAT32 and taking some risk.
Increasingly, more and more software will only be sold as downloads. Consoles are making that transition, with handhelds farther along but still trailing phones and tablets, where it is the sole choice.