Good article, confirms my view of the general public, that if it doesn't start when the key is turned, or operate when the switch is turned on, they are totally clueless .
They are truly amazed when someone can look at the 'machine' and find something like a broken wire or solder joint in a minute , or two.
Bring out a multi-meter, and they are in wonderment of the capabilities of this device !!!!!
When I lived in Chicago, there was a shop a few miles away, that was a 'do it your selfer type' dream come true.
If you had a broken appliance, that needed that $1 part, to fix it, if they didn't have it, they could get one in a week or so .