Lights...Camera...Action! and Whirlwind, as a pair.
I was a kid of 9 years old, the location was a camping in France, the year 1990. The two machines were both very new and standing next to each other. Two much bigger kids, who I now realise were very good players, were playing them. This is the first time I saw things like post passes and drop catches happening. By watching these two wizards at play, I realised that pinball was very much a game of skill. And I knew that I wanted to be able to play the way they did. I also remember finding that WW a much more difficult machine to play than the LCA. Which, I guess, is still true
Also: Banzai Run, that pin of which nobody seems to know how to spell the name correctly. This pin was (and is) just outstanding in every way.
As of now, I've owned all three of these pins at least once. BR turned out to be the keeper of the bunch.