There was a time my 1980s/early 90s Nikkor lenses
were still partly comparable with Nikon Digital SlRs..
But I was no longer working in photography and couldn't justify the expense.

Some Fuji [if i remember correct] DSLRs also accepted older Nikkor lenses,
but even though less expensive, still too much cost for me.

Besides which, working too long in photography had killed my enthusiasm
for continuing it as a hobby...

I also find my smartphone camera to be a perfectly adequate tool
for everyday use,
keeping instant record of misc stuff needing to be documented..

eg, today, reaching down behind the TV stand to get a clear image
of how I wired all the gear together over the last 20 years...