Paul Theroux said this quote

..luxury is the enemy of observation, a costly indulgence that induces such a good feeling that you notice nothing. Luxury spoils and infantilizes you and prevents you from knowing the world. That is its purpose, the reason why luxury cruises and great hotels are full of fatheads who, when they express an opinion, seem as though they are from another planet. It was also my experience that one of the worst aspects of travelling with wealthy people, apart from the fact that the rich never listen, is that they constantly groused about the high cost of living – indeed, the rich usually complained of being poor.