Well.. Led Zeppelin is one of the biggest bands ofd all time. They dont tour anymore, because their drummer died in the 1980's. Zeppelin are in the top 5 selling artists of all time. They sell out any place they played. They played a show in 2007, and it sold out in literally 30 seconds.
Iron Maiden, sell out every place they play. And have a very hardcore fan base. Maiden still plays shows, and they are better than ever.