Qantas
flies Melbourne-Albury but not the other way.
Nope - only MEL-ABX flights are in the winter when they can't get into Hotham. MEL-ABX and bussed to Hotham. They do heaps of Sydney to Albury.
Back in the good ol' Southern days the question of Melbourne - Albury used to come up often but the reply was that the numbers never worked.