Some interesting old black and white photos of gas stations in the USA in the 30s and 40s, note the prices!
http://www.vintag.es/2013/06/black-white-photos-of-gas-stations-in.html


Yeah, remember the days when you could pull in and multiple guys would come out, check your tires, oil, wash your windows and THEN give you green stamps for only about $0.30/gallon? Now you pull into self serve, pump your own while a high school kid studying his history book smacks gum behind bullet proof glass for $4.00/gallon.
How the mighty dollar has fallen.