oh yeah.. you miss a lot of details ... , for sure
you make real money on low end detail ,but not when you work by yourself! you need volume , and alot of business and a min of 1-2 guys and a business system to have a "secure" income.
i do 2 step correction for exterior only , around 400-450 , with 1 helper i can get that done in 5 hours , that`s 90$/hour , pay the helper , gas , etc and i still make more ...why? because i start with higher prices and i keep the clients , improving my working time with a helper is a pure profit.
now rise your prices and see how many of your "old" clients you have left...