In the mid-80's, Maestros were top of the Advent pecking order, above both the Prodigy and Legacy. They were on the price level of the 6003 before them, and the Heritage after.
Because of their expense, they were never quite as popular as the Legacy, and the mid-range speaker, if it had problems, was impossible to replace. I prefer their sound to the Legacy, but since my migration to E-Stats and Big Klipsch speakers, I don't use either of my pairs any more.