I lived for a while in one of your chalets when I was in the Royal Navy. My most vivid memories were the chalets in Winter with no heat, and having to walk to the end of the chalets to use the toilets. I played the organ in the theatre every night before the cinema show.
After the War, I had an enjoyable time at Butlin's each year, until I emigrated in 1950 to Vancouver, Canada, where I now live. Before leaving, I listed what I would miss, and Butlin's was on my short list. I know of nothing in Canada like what you have there, and Billy Butlin was a Canadian. I particularly enjoyed the team system, in the four main dining rooms. It was fun trying to win points for our House, and being asked to stand by the House Captain for applause from my team mates, after winning various events.