I do remember some great times like that, though I must say that in my congregation we kept them going up all through the 80's.
I remember organizing any number of "large" gatherings, 100 folk from the congregation at least. One bro worked at an elementary school, and we would use the multi-purpose room there, complete with stage, or rent another room at the town hall. We had a bunch of costume parties, talent shows, a formal dance for the teens, and that sort of thing.
We had one party for the elderly in the cong in which we arranged the rented hall like an elegant restaurant. The older ones dressed for an evening out, the teens served as waitresses, we cooked a great meal and served them. One brother who loved big band music created an 'orchestra' that pretended to play to all this great old music and a bunch of us performed by 'lip synching' as Sinatra, Durante, Patty Page, etc., all of us dressed up.
It took a lot of time and effort, but it was fun as hell, and what great friendships it created. I was the last person in the cong. who was willing to organize stuff like that and take the responsibility. When I stopped doing it in the late 80's or early 90's when I stepped down, those fun times also stopped. There has not been a significant cong gathering in a dozen years in my old congregation. And it's smaller now than it was back then!
Thanks for the memories!!
S4