Sounds similar to us. Having been renting in Sydney for 7 years we still couldn't buy. Came out with a 3 and 1 year old and left when they were 10 and 7! We've been back 2 years and are renting in a new area in the UK which has worked out well. It's good to be back for the familiarity of things but the weather is grim at the moment. We stayed long enough in Oz to get our passports so we could always go back. Life is about connections and rootedness and a sense of belonging - although now back we haven't seen as much of extended family as we thought. If you can pick up jobs again in Scotland then do it - but don't burn your bridges in case you want to come back. Hope this post helps a little!