My 2 cents and it probably means nothing. It's all stuff. Letting it go or keeping it is irrelevant. Just do whatever makes you happy. Our time here is limited so just do whatever makes you happy. If in the future you regret it, so what. Life goes on.
That being said, you have a beautiful collection. I'm certain there are many of us that would be more than happy to help compensate whatever you decide to get rid of.
I've sold a few machines I think I'd like to have held on to. Can I get them back? Yeah - at a cost.
Just be happy and do what you feel is best for YOU.
All the best.