Other companies like IGT and Aristocrat did a better job than WMS or Bally, for instance, of carrying their classic titles forward onto new equipment. Scientific Games has been on a tear the last couple of years, reviving a large variety of old formats, predominantly of the WMS vintage, but also from Bally, as casinos continue a major life cycle overhaul replacing many of the classic slot machines that have seen 10-20 years of service with more modern equipment, an inevitable step as some machines move beyond their serviceable lives.
