I don't view manual copies as being piracy. As someone mentioned before, Nintendo tried to stop it before, but they try to stop EVERYTHING they don't have control of when it was something they created; even from decades ago. I know that some places like segaretro.org has a significant amount of scanned manuals. I've downloaded quite a few to have that I found I'm missing from my collection.
I think eventually there will be complete collections donated to museums or bought by museums for preservation. While I have no interest in having a complete collection myself (I simply don't have the time, energy, space, or money), I am making a point to do something special with my absolute favorites through time; making a hall of fame of sorts.
I'm currently working on a Ninja Turtles shadow box. Inside the box will be my recently purchased complete copy of the original NES game with a shadowbox design covering the five games from the 8-16 bit days. I'm planning on doing this for the Sega Jurassic Park games, Resident Evil (undecided if the PS1 or GC version), Tomb Raider, and my favorite game of all time, Uncharted. More may follow, but for now, 5 is plenty. Probably comes up to about a year's worth of crafting work for me to do.