I followed this Villager Modifier Tutorial by TeconMoon
The explanation was very thorough but me and some others ran into an issue that I can't seem to find any fixes for.
So basically what this does is replace an undesired villager with code for a particular villager one would want.
So yeah...
You can buy drm free games / music / ebooks, and if you keep backups of your data (like documents and family photos etc), then you shouldn't lose the game. but with a disk, your toddler could put it in the toaster and there goes your $60