I rarely go back to Oz, only when I need a visa for a country I'll be working in.
I can't remember, around 2010, think it was, I went back to Oz, needed a visa and medical to work in Saudi Arabia.
I had one of the first issued chipped passports, didn't even join the queue, scanned my passport and went straight through electronic gates.
It was a little strange being the only person using the electronic gate.