The very thought of unplayed strings on a nice guitar makes me cry.

Thankfully, I've never tried this experiment, and I hope I never do.
cotten
Exactly! I kinda hate hearing about guys that have 40 guitars, or twelve motorcycles, or 75 rifles/pistols. Not jealousy, I just think it's a shame when examples of great craftsmanship go mostly unused. I do see the attraction of owning things that hold collector and/or sentimental value, but at some point it just feels like warehousing stock.
Motorcycles in particular deteriorate from non-use. Seals dry out, tires get flat spots, fluids separate and sludge becomes layered like sedimentary mineral deposits, it's just terrible on them.
I've seen guns that have been left in cases so long that they've corroded where they contacted the felt or canvas.

And with musical instruments, it's just sad if they lay mute, cased up and stowed away.

Everything was made to be used, and nothing, including us, lasts forever so we may as well appreciate what we can, while we can.

-K