Action Comics 1 result, the "Overstreet Comic Book Price Guide" has, since the 1970s, published a warning advising that attempts have been made to pass off the reprint, stripped of its "Famous First Edition" cardboard cover, as an actual #1. However, the Guide does not cite any actual instances of this. DC reprinted "Action Comics" #1 in 1988 as part of the 50th anniversary celebration of Superman that year. This edition reprinted only the Superman story, with a 50¢ U.S.A. cover price. The complete issue was reprinted in 1998 with an additional half-cover featuring the Superman stamp from the U.S. Postal Service's "Celebrate
Cultural impact of the Guitar Hero series the "Guitar Hero" franchise have exceeded one billion dollars with over 16 million units sold, excluding downloadable content. Over 20 million songs have been sold as downloadable content as of July 2008, and 34 million by May 2009. As of October 9, 2008, the series has sold 23 million units with sales of US$1.6 billion, and as of May 2009 has earned US$2 billion at retail. Activision claims that "Guitar Hero" is the third largest video game franchise after the "Mario" and "Madden NFL" series, and is present in over 15 million households. "Guitar Hero: World Tour" along with other