GG I just finished Mrs. Astor Regrets and if I were you I would tell Santa to save his money. Maybe just get it from the library if you are really interested.
NOW....if you really want to read a good book about the rich and famous check out Consuelo and Alva Vanderbilt by Amanda Mackenzie Stuart. The story of a daughter and a mother in the Gilded Age. I promise it will fulfill your fantasies