Detail shops do amazing out here, due to the mass amounts of money from oil, and the weather people get their cars detailed alot. I know my dad does both his cars atleast twice a year. It is a hard buisness to get into though alot of high end cars and picky people. If you can do it well you do really well. Coin ops are doing really really well, most of the time you dont need a $7 car was at the gas station (those who use them) so insetad then spend a buck to spray off thier cars. But yes the detailing buisness out here is booming, few shops that cant get customeres in its a great area to open a shop (but very expensive to live so not worth dong it unless your already here)