It occurs to me that Triomphe was indeed the cheap end of the Campy spectrum but so was Grand Sport. Even Dale himself purchased a mint condition Grand Sport rear derailleur from me at one time (They must have some value) ... So without any bias and being totally objective, here is my take on the line up ( the ones I've actually owned at one time or another).
Valentino - cheap and mostly lacking in dependability.
Grand Sport - cheap but rather functional
Nuovo Record - absolutely classic
Super Record - Misguided effort at being more starkly modern than NR but with the smallest measure of added functionality.
Triomphe - cheap but strangely durable and interesting. Still functional and having the same lines and angles as NR in the rear derailleur.
Victory - essentially NR and with a modern edge that makes it classic and clean.
C Record - overly fussy in it's modern approach but still nicely functional.
Modern stuff from the 90's and to now - cutting edge and made to a precise dimension and functionality. Essentially Italian cache on Japanese mentality.
Garth Libre in Miami Florida ... laid up looking to the possibility of having a cutting edge anterior approach replacement for my ailing left hip.