There was also xenon at the lower end90's Mirage was second from bottom in the Campag hierarchy - heavy-ish but nicely made. It competed with Shimano RSX.
Record > Chrous > Athena > Veloce > Mirage > Avanti
Shimano 600 was just below the top range Dura-Ace
Dura Ace > 600 > 105 > RS100 > RSX > Exage