Haha, this is really cool. I would guess this had to be 99% status and 1% secrets, at least for younger guys. Or, did the keys and physical computer locks really make sense for high-end industry professionals?

I think our first 386 also had a physical lock, but since I was a kid back then, I don't remember having ever seen anybody actually using a lock like this anywhere. But ours was a tiny province town in almost-rural Estonia, so there were no real industry-level secrets anyhow.