I sometimes wonder how much it would cost to build a "bulletproof" amplifier that couldn't possibly fail unless run over by a truck or struck directly by lightning?
In my industry, we have to pretty much do that. No matter what, the stuff has to just keep working. Doesn't matter if it's operator error or not, it just has to work and not fail.
Seems to me that costs about 2x the cost of stuff that can fail. Really not that much when you think about it.
Everything's built for "worst possible case," and then also made redundant and fail-over. And then in the rare case that something does fail, everything that can fail is swappable in the field in a few seconds without using tools or removing covers, and spares are provided. Still actually doesn't cost that much.
Wonder if the ham market would support such products?
Nah, probably not.
A government which robs Peter to pay Paul can always depend on the support of Paul.
-- George Bernard Shaw