Yes, often. Some of the best and most memorable bands I've seen are King Diamond, Mercyful Fate, Brocas Helm, Carnivore, Damien Thorne, Deceased, Angel Witch, Legend (Jersey), Quartz, Possessed, Deep Purple, Demon Bitch, Goblin, Occultation, Sauron, Perversion, White Magician, Ashbury, Manilla Road, Helstar, Iron Maiden, Queensryche, Riot V, Ozzy, Nasty Savage, Judas Priest, Locust Point, Wastelander, Raven, Vio-Lence, Saxon, Uriah Heep, Medieval Steel, Morgul Blade, Danava, Isenblast, Metal Church, Shok Paris, Exodus, Halloween, Wishbone Ash, Testament, Liege Lord, Death Angel, Coven 13, Oz, Megadeth, Power Castle, Gargantula, Overkill, Slauter Xstroyes, Morbid Angel, Slough Feg, Uli Jon Roth, Impaler, Wanderer of the Waste, WitchFist, Anguish, Toranaga, Warlord, Hirax, Tyrant's Reign, and Winterhawk.