Rick,
My thoughts are it isn't anything in particular.
That is your equipment.
As someone who's been to the museum , you obviously don't need everything you have (quantity, variety)
I thought aside from the musical enjoyment you enjoyed being a collector (curator if you will).
Sometimes you just have to change things up. (I'm not referring to gear or music).
You've been cooped up all winter.
I don't know when you retired. Maybe you had plans to do something when you had more time and you do now.
I'd sleep on it a bit.
If you have stuff you know you'll never listen to (restore?), pass down?, assuming you don't have some attachment to it , there's no reason not to sell.
I've been pretty busy the past few weeks and really haven't had much time to listen. The stereo isn t like a child i neglected.
Sometimes absence makes the heart feel fonder
Do what you want. Be careful selling that you're not kicking yourself later.
You didn't fall out of love with music or gear.
You just feel like doing something else .
Sorry about the ramble