[johnmarcus]

a few problems with your argument: Apple technicians are often worse at repairing devices. Apple policies are often the root cause of this, as they prevent technicians from doing reasonable repair work in order to justify replacing entire parts which do not actually need replacing in order to repair the issue.

The the problem is folks inexperienced with repairing devices like yourself have been convinced by apple that "many (most likely the majority) ... will make mistakes".

That's like saying every 3rd party auto repair shop should be shut down in favor of dealer mechanic shops. When in reality, the corporate greed policy based on making money - not repair electronics or cars - are often the driving decision makers in repair work. That is to say, they actually do worse work at authorized shops. A lack of competition tends to do that.