Life is short. Don’t look at the guitars as tools. They’re functional pieces of art. If you don’t use them, but it makes you happy to own them, then definitely keep them. I have guitars I just never get around to playing, but looking at them makes me happy, and that’s good enough. And guitars hold residual value pretty well, so it’s not like you have to flip them. Hanging on to a TV would be a waste, but guitars are different. And don’t get too hung up on using all of the strings. 7 and 8 strings have built in 6 strings, and there’s no law saying you ever need to touch those lowest strings. For me, guitars are a very unique thing to own. They are art that can be used to create more art. There aren’t many things in the world like that, and I find them to be one of the few things that make life worth living. There are no rules about what they have to look like, and there are no rules about what you need to do with them.