IMHO, they were really the last of the consistently good A's.
Ha ha, don't you mean the last of the consistently good Zildjians??
Seriously though, nobody could touch Zildjian in the 70's/80's (when there was actually good, readily available competition for virtually the first time in Zildjians history).
The drummer in my Dad's trio (who is my earliest influence) got a hollow logo 12" Splash for Christmas, in either 1980 or 1981. That is THE BEST sounding splash I have EVER heard in my life. It literally sounds like a child jumping into a pool.
I don't mean to knock on Zildjian, but I just think that since the early 90's, their quality and consistency has gone downhill. And it shows. They certainly have lost a TON of market share. 20-25 years ago, your local drum shop would carry about 50 Zildjians and about 10 of everything else combined. Now everything is pretty much equal.
I go to drum shops/music stores often, and even the really good quality Zildjians (K Custom , K Dark, A Custom) just sound very clangy, harsh and un-musical anymore to my ears. The days of a true "splash" cymbal from Zildjian are long gone. They might as well just re-name it "Clang".
(Off soap box).