Real Madrid are known primarily for their star - studded line - up; for Cristiano Ronaldo, Gareth Bale, Luka Modric and their vast array of other Galacticos over the years.
Ozil was Wengers first real galactico and sanchez was his 2nd, if he continues to add world class players and develops others (I think bellerin, coquelin, gabriel and the ox could all become that) then ozil will fit right in.