Luxury is what these people are living: http://www.forbes.com/billionaires/
We would all do well to remember that the first 85 people on that list have as much wealth as the 3.5 billion poorest people in the world: http://www.forbes.com/sites/laurashin/2014/01/23/the-85-rich...
That is luxury – a lifestyle only attainable by an infinitesimally small number of people, and one that they protect with the might of laws they author, politicians they buy, and force they command. It's important to keep sight of where the upper limits of wealth are, lest you get confused about your class or with whom you have the most in common.