Here is another movie I would love to have on DVD, but is unavailable. For now. According to the web site http://www.koyaanisqatsi.org/ fall of this year is the target date for re-release on DVD around the same time as the theatrical release of the third of trilogy, NAQOYQATSI.
All this was brought to the front by my renting from Netflix another film with a Phillip Glass soundtrack, Mishima.