This snobs dream wedding is a destination wedding.
My second cousin’s kid had one in the Caribbean somewhere. I, thankfully wasn’t invited (of course I wouldn’t go anyway). My parents (read, Mother ) would have gone, but their fixed income status made that impossible. So few people made the trip, that the cousin had a party, locally, for family a month later (probably to garner more presents).
Not just a destination wedding, but with hundreds of people there. At several thousand dollars per person in travel and food just getting there. I can understand wanting to restrict the guests to those who are mature enough to behave. I can understand destination weddings when such a thing is more important than family and friends. But she should not expect hundreds to be willing to shell out for her fantasies.