I shoot birds and BIF primarily, but also do flowers, butterflies, some landscapes if there's a particularly stunning view. If I weren't retired and were earning the income I had, I would probably switch because the AF on the new Canon's (R5/R6) is just phenomenal and ditto for the Sony A1. I have friends who have both and who shoot what I do and they're able to leave me in the dust--I get very good shots with my D500/500 PF combo, but they're getting the shots I miss. I'm amazed to see a guy I know who has an R6 with the 800/f11 and he'll shoot a bird pretty far away, but his focus square is right on the head--and if he's fairly close, it's on the eye. It makes me weep sometimes
when I'm struggling to get my D500 to pick up focus and he's nailing the eye. And there are a couple of Sony A1 users now that get similar shots. So, yeah, if I could, I would. But, I can't, so I'm learning to live with my Nikon's capabilities and maybe--just maybe--Nikon will come out with a mirrorless that at least equals the Canon's and the Sony's one of these days.
I agree with what your experiencing, I am seeing the same thing amongst some club members. Some members feel they are being left behind and cant afford to keep buying the latest and greatest and they are becoming despondent., I mean some members recently jumped into the Z6 Z7 with in 3 months the series II was released.........others bought the D5 then sold it to buy the D6, they are already selling the D6 in less than 6 months given what's taking place........with the pending Z9.
Sony don't even go there.
I ask what about photography and enjoying yourself ?
There are always people that are going to take better photos' than myself, I just don't let it effect me or pressure me into feeling left behind.
I went to a recent wild life photographer of the year exhibition here at the Maritime Museum and there were amazing wild life photos from all around the world...just amazing, there were all sorts of awards, the 600mm F4 and big bang cameras had some lovely shots, most were D4s 1DX, they were technically excellent, detailed, great colour, eyes tack sharp, however the wow shots with many awards came from more humble owners using older or mid level gear even a D300s 150-500 Sigma, D7100, D3s, D4s Z7, D5200 D5500 even some with kit lenses, with some of the higher end gear owners several of them used camera traps at night to get rare wild life shots.
What stood out was the crowds seemed totally oblivious of the specified gear used to take the shots, it seemed the crowds were drawn to the photograph itself often taken with older gear. Ignorance can sometimes be bliss.
I mean a tack sharp well tweaked shot of a bird with the eye in focus and sitting on a twig taken with $20K rig is a great record or documentary shot but nothing else and dime a dozen.
Some people spend a fortune on high end gear to get brilliant shots and then often just look at them on a phone, I pad or computer.
I recall in this forum someone rightly pointed out that the gear game with the big three is all about leap frogging one over the other with new models and that's brilliant as it brings new technology and innovation ..........the issue with that is for many cost depreciation and often obsolescence.
A camera system is capital intensive and for those with deep pockets they can follow the latest........others cant.
There will always be newer models be it cameras cars Tvs.........we cant all keep up with the pace of change, identifying what's real is important.
So the answer is, forget the pier pressure of the camera manufactures trying to grow sales globally with innovation or upgrades every 3 to 6 months...........myself I am letting it all settle for a year or two, staying with an all-round D850 for now, enjoy what I am doing, hire the exotic stuff on the occasion I really need it........let me tell you its cheaper at the moment till the dust settles. Note there are some brilliant buys of brilliant gear used, and may I say here in Oz that used market is drying up fast, people are not buying much new or used..........period, many owners of good gear are hanging on and don't want to invest just now or if at all..
The prices of the new exotic lenses is just getting silly, the camera industry is going for margin not volume, if Rolls Royce want to stimulate sales they just raise the price $100,000 on a refresh model and the buyers update quickly.
I have mentioned in an earlier reply what I like about Nikon, if I did change it would be to Canon, but the leap frogging is not over yet by a long long way, wait till 2022 and see what happens.
I am keen on the Fuji 100mp medium format system, I am waiting for their 200mp sensor to be released that will put real distance between 35mm and MF, amazing for landscapes and sea scapes.
For 35mm which is getting less interesting for me as time goes on, its Nikon for now, Canon if they get their file quality as good as Nikon.
Only an opinion OZ down under