Got lucky with a pretty good deal on a famicom + disk system. I need to take apart the disk drive to see if I got lucky and it is one of the ones that can write disks without modification. If it is, I can get an adapter and overwrite common disks with rare games instead - or sometimes you can save failing disks by re-imaging a fresh ROM onto the disk. Pretty need from an archive/backup perspective.

If I didn't get lucky then I have another thing to motivate me to get off my ass and finally learn to solder.