You are using an bad example: First, there is nothing to repair. You either live with dead pixels or you replace the panel, which is essentially the TV. Also,

You are using an bad example: First, there is nothing to repair. You either live with dead pixels or you replace the panel, which is essentially the TV. Also, if you spend 10 hours fixing a TV, you don't know what you are doing. A common and reasonable example: a failed power supply circuit in a television. Could be a few dollars in parts and an hour to repair. The key skill is soldering the parts, which is easy for someone experienced. The value of time is relative, I could have repaired a TV instead of responding to comments on HN. Now, also consider the carbon of shipping a TV across the ocean, then to the local retailer. The trip to the store is the same as the cafe, so I would consider it the same.