I just replaced the 7-year-old stock hard drive on my iMac. It was at deaths door numerous times over the past year, but now it is gone and forgotten as the new drive is young and beautiful. It was a fairly simple process (thanks, iFIXIT) — just pry the bad-boy open, rip out the guts and staple in the new heart. No sweat.
More difficult was reinstalling the software. It took the better part of a day to get things back to where I wanted them. Files. They seem so outdated, and yet the prospect of losing said files is a nightmare hellscape I don’t even want to broach. (All of the files are safe. My memories are intact.)
Now back to actually using this tool for a purpose other than extending it’s own life.