Some of the other comments....while the hourly rate or flat rate for labor seems excessive (of course businesses will charge wha the market will bear), until one understands the cost of running a business, any business that has full time employees, stick n bricks shop, high $ equipment and high risk activities, you won't understand why the mechanic "only" gets $30 of that $150/hour rate. Oh and the $30 wage is more like $50 cost to the company.
Of course I can do work cheaper in my garage at home, and do. My "shop" is not a business expense, my tools are plenary compared to most shops therefore not as efficient and my overhead expense is basically limited to the cost of beer and, well, that's about it!