Over the last 12 years that I have worked as a Systems Administrator, I cannot remember a single Apple computer failing at any of the places I worked. That said, Apple computers were in the extreme minority of systems in use. Typically less than 6 systems total in the Marketing department and that was it (out of 4 companies.) Whenever a system was retired we just tossed it on the recycle pallet, nothing to salvage. I did repeatedly ask for a Mac Mini to do some testing and documentation, to make life easier for those few employees that had them, but management refused to spend the $500 or to let me hang onto a retired system to test with. They were generally despised by IT management who barely tolerated the Marketing people having them.
Oh, and there were of course no systems running Linux other than servers.