I once soldered wires directly to the pads on a microSD to SD card adapter and, through a level shifter and managed to use my Arduino Uno to save text (GPS read

I once soldered wires directly to the pads on a microSD to SD card adapter and, through a level shifter and managed to use my Arduino Uno to save text (GPS readouts) on microSD cards. I think even if more advanced storage comes along, SD cards will still be desirable for the simplicity and backwards compatibility.