Ha ha ha - my partner who was about ten or eleven at the time, went from her school in Leeds on a special trip. They came down and, as you describe, they queued for hours and she says they were hurried on faster than they wanted to be, in an effort to get the queues through. She does say it was wonderful though, so maybe that is where I got the sense of regret. Now, having read your report, I can let that go. At the time, I did think of going from my garret in Twickenham (literally - I was renting an attic bedroom come bedsit in the top of a massive house in Strawberry Hill for - believe it or not £4 a week!) and I had seen the Sunday Times colour supplement photos and thought, well, I've already seen it. They are not going to let me touch anything, so I'll be content with that.
EDIT:
Just went and researched the house I lived in and found it was just sold for £2.4 million!!!
I had the left hand 2/3ds of the roof space and worked at my studies under that window in the roof. Happy days! I was there from being about 20 to 22. All of life ahead. Every day was brilliant back then - or so it seems now.
It was owned by two cash poor but asset rich German refugee ladies. They were incredibly coy back then about where they came from, saying only that they were 'European' in heavily accented English. The place was fantastically opulent. They occasionally held soirees for elderly friends which i and my then girlfriend were invited to. I remember they had a string quartet at one of them with a guy called Benjamin Luxon who I later heard playing on the radio. For me, coming from a respectable council house in Newcastle, this was a very interesting period.