conspicuous consumption

Translations
демонстративное потребление
His conspicuous consumption was evident in his collection of luxury cars.
Его демонстративное потребление было очевидно в его коллекции роскошных автомобилей.
Definitions
Conspicuous consumption refers to the practice of purchasing and using goods and services to publicly display wealth and social status, rather than to meet basic needs or for practical utility. It often involves extravagant spending on luxury items that serve as a status symbol.
Words
conspicuous

adjective
демонстративный
consumption

noun
потребление