Ahhh, that good old Australian tradition of "Changing Trains" re-lives again!
But seriously, electrifying to Dry Creek makes sense as it saves the embarassment of having the brand new Electric Railcars being hauled there by ageing diesel locos!
Changing trains in suburban areas in Australia is nothing compared to Metro based networks where trains pretty much all shuttle on he same line.
Re: Dry Creek DEL hauled. This "embarrassment" hasn't slowed the Melbourne system hauling new sparks with old locos to Ballart