If I were just involved in the hobby, I doubt very much if I would have a fraction of the kit listed, but as I said, running an electrical business I tend to be rather spoilt for instrumentation.
Our test lab is full of weird and wonderful equipment, but as my hobby revolves around audio thermionics, I have listed those instruments which I am most familiar with and which I reach for as a matter of habit - and of course can easily use at home. I only tend to work in the lab if I am on a big repair or project.
This thread was simply initiated out of interest, and certainly those of us who possess a minimum of kit should be applauded in what they can achieve.
There is a famous saying amongst engineers:
"We have been doing so much with so little for so long, that we can now do anything with nothing for ever".
Cheers to all,
Dave.