Although Nintendo's new handheld-and-console Switch hybrid can be expanded with extra storage via SD cards, users won't actually be able to copy their saves over.
Nintendo has confirmed that game saves are locked to the Switch's internal 25.9GB flash storage, meaning gamers have no way of exporting or copying their saved games progress to SD cards. So what happens if you play 300 hours of Zelda: Breath of the wild and your Switch console bricks?
You lose everything. Ditto if your flash memory ever has any issues. Digital libraries will also compete with game saves on the Switch, so if you plan to go digital, get an SD card and store your games onto it. So all your progress could be at risk and there's nothing you can do about it.