I think I have a tendency to want to thin down at least what I use to things I really know intimately. With all the automation, there are compatibility issues even with Pentax that can kind of inflate the number of things I need to at least try.
Much of my paring-down in the past has been pretty involuntary, but when I have what I need, I've tended to give stuff away when someone has a need. Having too many bodies is never a thing I've been fussed about
: partly because a lot of them aren't in perfect operating shape: (This really inspires wanting some redundancy) ...but that's something that needs attending to soon.
It's a chance to have fun checking stuff out, anyway, in the meantime.