That probably wasn't fair!
I spent 6 years living in Sydney Inner West. (Just now unloading my flat!) Even found Sydney logistically complex. Exaggerating a bit. Don't like having to go to post office to pick up packages. Or having to go out to the airport to pick up a box and clear customs. Note: for some reason the declaration amount requiring duty is lower for items shipped FedEx vs. the postal service. When I first moved there I was SO impatient, SO excitable. But you adjust to the pace.
I spent a lot of time in the Blue Mountains which are fantastic. You don't really have to venture far to get away from the crowds. Did some winter walking in Tazzie. Loved the bleakness of the Overland Track in July!
But found it much easier to just hop a flight to NZ for a week or two of walking. Or for longer breaks an RTW to Geneva or Madrid for a few weeks of walking, stopping in US to visit family on my way home.
Would love to do the Larapinta etc but was intimidated by the logistics. Thought about taking the train from Sydney to Perth. Stopping in the middle for some walking, then doing that longish trail south of Perth.
Also, gear is pricey! Way pricey.
Logistically speaking, a bit more effort than hopping a plane to Geneva, stocking up and taking a train to the start of a walk with very frequent resupply options. No doubt worth the effort though!
I hope to get back to Oz after school holidays and work in a couple walks. Possibly Larapinta.