The A class are in the twilight of their years as passenger locomotives. Due to their notable defficiencies, including lack of HEP, the requirement for more staff than most other train types, their lack of numbers compared to N class and P class locos and most notably their age, they are not the first choice of motive power for V/Line to use.
Therefore their use has dwindled over the past few years. Just 5 years ago, they were used extensively on the Seymour line, Geelong line, Bendigo line (for peak hour local trains), Ballarat line (peak hour Bacchus Marsh trains), and Stony Point line. The growth of the VLocity fleet has seem their use dwindle to just one trip each day to and from Bacchus Marsh.
So enjoy them while we still have them, because surely it will not be too long until they are a thing of the past.