In the mid seventies and early eighties buddies from work and I hung out at the Billy Goat Tavern in Chicago during lunch hours. A pitcher or warm flat Old Style beer on tap went for about $4. The double chizborgers were about $2.50 back then.
Old man Sianis never did believe in cold beer storage since the high utility bills cut into his profit (the bartender told me). And why buy fresh bread when week-old stale buns are acceptable to the clientele? Their burgers were always sub-par even at the old prices but the ambiance was second to none back then.
The original Billy Goat occupies a hidden place on lower Michigan Avenue northwest of the river and it is still in business but the tab will be much higher if you ate there today.
This video captures what I remember. It was filmed at one of the newer Goat establishments located on west Washington St. between Franklin and Wacker.
Some things will never change. I hope.