dpb wrote:
....
protection from automagic restart after a power glitch is a _BIG_ safety
factor that goes away w/ a mechanical switch.

I've never seen all that much value in such protection. I think of it
this way: what's the probability that I'll be using a machine at the
time of a power outage? And what's the probability that I'll forget the
turn the switch off before I leave the machine? And what's the
probability that there will be any dire consequence to it coming back on
without me there? Multiple those probabilities and overall risk is so
low that I don't give it a second thought.

Bob