Well, I'm almost 62. I want to make one more body purchase. Camera body. I wish I could buy a new body for myself.
For me, it isn't as much about the sharpness as it is cropping. I keep thinking 50mp would just be too much. On the other hand, I'm now on 2 acres. There are lots of birds. In a couple of years my fruit trees (lots of plum, apple, pear, persimmon, apricot, etc., and vineyard will have some size to them and birding will be a blast. In that case, 50mp would work.
I'd especially like photos of the Peliated Woodpecker that visits.
My R is plenty sharp.
Priorities. I need a tractor worse. I'm in a 336sq ft cabin on an 87,200sqft lot. Push mowing is a bitch.
Takes 3 days on my week. If it rains, I'm mowing every day.