Hi, my views are based on my reasearch and my recce.
Am not saying some things are not more expensive and their are new costs but there are some things that are cheaper and there are some costs in the UK you do not pay for in Aus. My points are in red above. Like i say and have said though all depends on your circumstances, where you lived in the UK and your job ect.
Think the last part of your post is also spot on. People moving out do so for various reasons and know what they are getting into and leaving behind. No point in moaning after you have jumped, you just need to adapt and get on with it.