I think it was when East West decided to operate F28s into Albury
Lookleft,
Albury got the tower when Prince Charles was at Timbertops, the "Royals" only fly in controlled airspace, and have the same priority as the Governor General, in Australia.
Not absolutely certain, but I think the Wagga tower was a hangover from RAAF days, as was Camden, where DCA built a new tower when the RAAF tower burned down --- without consideration of whether Camden really needed one --- but when it is all taxpayer's money, who cares about the cost.
Tootle pip!!