I imagine that someone could make a living in my area fixing Washers/Dryers and dishwashers and the like.
There was two people in the past that worked on these things in our area. One guy moved. The other guy worked as an older man until his health prevented him from working.
Nobody has filled that void.
Now it seems most people will just buy a new one instead of paying way too much to take it to a place like sears that over charged...and I am not even sure they do it anymore.
Some goes for TV repairs. People just go get new ones cause they can not find a repair man around my area.
Thankfully we still have a couple of places for small engine repairs like push mowers, riding mowers and weed eaters.
Honestly, one problem is how much it costs to repair appliances today. Everything is controlled by computers and specialized circuit boards. I had my kitchen renovated in 2013. All new appliances, including a washer and dryer for a laundry room off the kitchen area. After 6 years, and coincidentally after the warrantees expired, the appliances started to fail one by one. The Washing machine needed two boards and the repair cost me over $600. The electric oven upper heating coil failed and cost over $500. The stove igniter failed and was continuously making that clicking sound. That was $580. The microwave above the electric over failed and cost almost $800 - and it has never been the same. I looked up the parts online to see if I was being ripped off, and all the boards and parts would have cost be about the same as what the repair guys charged. I can see why some people might just dump their old appliances in favor of new ones. Nothing as expensive as these devices should fail after only 6 years.
I started repairing my own TVs and monitors. They are not as complicated or dangerous to work on as the old tube TVs. In most cases it's a capacitor or two that goes bad, or the backlight LEDs get old and brittle. They are easy enough to replace. Or if modules go bad, you can find replacements online for less than what it would cost to get a TV repair guy to do it.
I honestly think prices for these repair parts are set at a number where it is just cheaper than the point where you would go buy a new appliance. But I do think a good repair guy could make a good living, and repairing appliances for the most part is not as dirty as plumber in crawlspaces and dingy basements or bathrooms.