I'm also in Australia, most of my mates had C64 or Amiga, but my parents (possibly by being English) got the Amstrad. I only ever came across one other kid with an Amstrad (his family had the 464 tape variant). I agree it was rare here.

Next time I visit my folks I'll check out and see if they have any of my old disks. I doubt anything survived this long but your post has planted a seed of nostalgia.