With the profusion of ultra-elite programs it seems to me a good idea to share experiences. A few I know a bit about are: Emirates Invitation Only American Concierge Key Delta 360 SPG Platinum 100 United Global Services There are many more. A common characteristic is that, for the most part, the existence, benefits and qualifications are not widely disclosed. Thus insight is likely to be interesting to many of us. So, please post and tell about your experiences.