We moved alot as kids and I loved it, we always stayed in VIC though so it may have been a long drive to see family but you could do it by car.
My parents did try to move to SA and QLD when we were 7-14 years old but either myself or my brother said no so we didn't go but it shows that they were willing to do it once upon a time

I think that is it though Traveller, if we don't do it we will always wonder and I think it will be an amazing adventure for us all. At the moment we have the money to do it comfortably (I think! It is so hard to know how much really is enough!) so what better time.