I saw this somewhere else and it had some good responses.
Whats the most expensive thing you have held or been near in a proiate setting? Not like looking at the Mona Lisa in a museum unless you were moving it or something.
I have two. One is stolen from the other list but it applies to me too.
I sat in a Bugatti Veyron (didnt drive it).
And my degree. A very expensive piece of paper.