I was also in the class of '81, and I lived in an area surrounded by trees, so it was fun to drive the half hour to a town with an arcade, a bowling alley and a skating rink!
There was definitely a wide cross section of kids there. The jocks, the degenerates, the normal kids, and girls... looking for guys of course! My friends would find a guy and look over his shoulder while he played and ooh and aaah his every move. I couldn't see doing that, I would rather play on my own. I don't really remember seeing any of what were then the stereotypical nerds there... they had homework to do and strict parents.
The bar I went to most often had a Ms Pac machine, and I would go and smoke and drink and play the game. It annoyed me to no end to have some guy try to pick me up when I was playing... I mean... didn't he know that the game had priority??
It was a great era to grow up in!