EXHIBIT 4.2 REGISTRATION RIGHTS AGREEMENT DATED AS OF DECEMBER 21, 1998 AMONG PARK PLACE ENTERTAINMENT CORPORATION AND MERRILL LYNCH & CO., MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED, NATIONSBANC MONTGOMERY SECURITIES LLC SG COWEN SECURITIES...Registration Rights Agreement • January 20th, 1999 • Park Place Entertainment Corp • Hotels & motels • New York
