When I was doing wine classes, I'd be serving 6-12 bottles per class. Folks were amazing how fast I could pull the cork (usually, on occasion one would be problematic).
I was musing about being in college and a bar near campus had "Dark Schlitz", which I liked, and considered "elite" beer, or something. It was unusual. We didn't have much else, Coors was ultra rare and a major treat even though I thought it tasted like water.
Stroh was a beer that came about when I was in school that was weird, said to be "Fire Brewed". The cheap beers came out during that time also, Red White and Blue was the cheap version of PBR, Busch of course, Milwaukee's Best was a beer - Miller? What were the other beers out in the 1970s?