Flagstaff has a high cost of living and virtually no high paying jobs. Most of available positions are in seasonal tourism work, service industry jobs, and some low end government work. When I was at the university there recently, the best job I could find was as a part time bartender, even though I hold several degrees and have a lot of work experience.
Most of Maricopa and Pima counties [metro Phoenix and metro Tucson] are subject to mandated EPA emissions and emission equipment inspections for cars, trucks, and SUVs. Vehicle license taxes are high unless you own a 20+ year old vehicle.
What seems to be no law is actually little enforcement and window tinting is a good example. Arizona does have standards on window tinting and an overwhelming majority of vehicles on the road have excessive window tint on the front side windows. The police may or may not enforce the law regularly, but do use it as probable cause to stop the vehicle.
Keep in mind that as more people move here, the laws and political environment have been changing. As a native, I remember when Phoenix had a population of 500,000 and it was easy to open a business, modify a vehicle, etc. Those days are disappearing as more people want the same laws they once left behind.
'13 JK Rubicon in white - the German Shepherd's
'13 JKU Sport in gecko - her Majesty's
I am just the chauffeur.