They are. I know more than a few ex-US cits who're now exiled in Uruguay (they're pretty uncooperative, which is great for a tax haven), and all of them have a

They are. I know more than a few ex-US cits who're now exiled in Uruguay (they're pretty uncooperative, which is great for a tax haven), and all of them have a net worth well in excess of $1bn. So it's not the 0.1%, it's the 0.00001%, and they've all been jumping the country for the last few years. Uruguay now has several valleys full of "ranches" (shacks), which said exiles own and visit once in a while in order to retain their domiciled status.