There are countless mechanics out there that are good with theyre hands and can beat the labor rate. There is a great need for technicians that can accuratly diagnose a problem the first time, and to be able to do this for all makes and models and all systems. Usually those technicians also tend to have a smog license and a background knowledge of common problems for a wide variety of motors. Although someone with more ASE'S or ase master tech complimented with a certificate of completion, or degree in automotive technology and especially a smog license has the opportunity to make better money, the background knowledge and accuracy are what can make the difference between lower middle class and well off.
Just my 2 cents lol