The six player X-Men was indeed so cool when you actually had the whole team going on it. Street Fighter 2 was absolutely my game, I remember putting my token in a line of them that we put on the cabinet to call next game at the arcade by the grocery stores my parents often went to. One time we were playing winning sits at Street Fighter II, I was on such a tear that I played for almost two hours straight and there were literal cheers when someone finally beat me.
My friends and I would all have our birthday parties at that arcade (the only one for like forty miles in any direction).
A lot of places had a few machines here and there though. I can remember going to a wedding venue for some people I honestly don't even remember, but I do remember stealing quarters from the bar tender's tip jar to play more games and when he caught me he was very cool about it and just put Pac-Man on free mode so I would stop.
My grandfather had no idea how to bond with us (first gen Eastern European immigrant) and so he would just take us to a local hotel that had some arcade machines and let us run wild with a roll of quarters. He'd taught us to pretend we were staying at the hotel if anyone asked us.