I have used minis in almost all games of 1st edition, the two sessions of 2e I played, all the games games of 3.0 and 3.5, and the one test run of 4e I played. Minis have been part of my D&D playing since 1981, though in the height of my 3.x play, my minis were at their largest, most complex use with lots of terrain and overly complex setups. I used minis for my games of hero system/champions. But I never used minis for Storyteller games or Feng Shui games.