Here's the condensed version of my usual rant:
Hanging guitars can do them no good things, but several bad things:
1. Neck bowing;
2. dry/shrunk fretboards;
3. fret sprout;
4. dust and cooking oil accumulation in electronics (cooking oils permeate a house which is why lots of dust accumulation gets gummy).
Casing them with the humidipaks that Moondog uses is what I do, too. Humidipaks both release moisture in winter and absorb moisture in summer by chemical magic, and they don't leak. A single 45% pad is all you need in each case for this approach to work. PRS keeps its factory at 45% RH, by the way (I asked).
This does a few good things, especially in winter:
1. A case buffers changes in humidity and temperature that occur in every home to keep setups much longer and reduces neck bowing;
2. Keeps the guitar from accumulating dusty goo;
3. Keeps the wood in good shape and prevents fret sprout.
I live in Michigan where it's hella cold in winter and muggy in summer. I spent a lot on my guitars, so I take care of them.
My guitars have not needed a setup since 2012 (I started casing them with humidipaks in 2013 if memory serves). I have one from 2013, one from 2014, one from 2023, and one from 2024. The 2013 is a PS acoustic. The 2014 is a PS McCarty Singlecut.
Did I mention that none of my guitars has ever needed a setup in 12 years? Jack Gretz set them up from brand new, and that's how they stayed.
They stay perfect. They look brand new. The pots aren't scratchy. I play them just as often as when I kept them out on stands back in the day. But they stayed nicer and I don't have to have them set up 2-3 times a year.
Oh, one more thing: Booger-eating morons with pizza grease or god-knows-what-else on their fingers keep their hands off your guitars (who even knows where their hands have been!) and can't ding them doing stupid things. You get to ding them doing stupid things all by yourself!
It's your money, they're your instruments, so it's not my call. Just making a recommendation here.