They are industrial works of art and Campagnolo was the gold medal standard when it came to bicycle parts for many years.
They are also, I think, overrated.
BTW, my guess is that most posters here will agree that Italian bikes are special. There is a lot more disagreement on this when it comes to French bikes. I started a thread on that a while ago,
https://www.bikeforums.net/classic-v...nch-bikes.html