it's not the financial loss...i don't think of my gear as an investment but more like my only source of fun/pleasure...
i don't like the feeling of having 5 good cameras and 3 of them sitting silently...2 bodies and a few lenses has always been my aim.
Selling cameras at this time isn't a particularly good idea - too many people seem to be dumping them, post-Covid, maybe wanting to upgrade and buy new or just get out of their photo-image making rut. Whatever their reasons, Ebay and all the retail shops with secondhand gear sections are chokkers full of old gear, and prices are way, way down.
So why not do what many of us do - rotate your cameras, use them in sequence, for different purposes.
I use my XT2 almost exclusively for black-and-white - it seems to be permanently set on the Acros film simulation, and the results I get from it suit me, tho' I must admit I need more practice to regain my old skill of judging the highlights against the shadows, which I happily did for several decades with my film cameras.
My Nikons now get used mostly for my more static bush landscapes and architectural work. When I go off to Southeast Asia in (I fervently hope) about two months, for another 2-4 months of happy wandering across several tropical countries, I'll take my XT2 kit with me this time, as it makes me concentrate more on 'action' images than the usually static old buildings and pretty landscapes I seem to specialise in.
The XT2 kit also has the plus of portability - it and four lenses fit in a cosmetics bag (admittedly larger than the usual fit-into-a-backpack small bags one can buy in department store beauty product sales) and it will do everything my D800 with one or two lenses have in the past, with less weight for an over-70 traveller to cart around. So it's win-win for me.
Now if only I could apply this 'rotation' plan to my film cameras, which increasingly sit idle in my cabinet...