I don’t believe that her and the husband are that well off. Of course it all depends on your perspective, but they live in a modest home (by Sydney standards) in a very modest suburb (by Sydney standards) which they’ve now sold? I’m sure the money she earns off selling the freebies helps them financially, so I don’t begrudge her for that. My guess is they had no way to live the life they want to here, so are moving to the UK, where to an Aussie audience it might seem more affluent? Also could be for the husband’s work/family. If they had it made here, why pack up and leave.