Materialistic

See Economic Materialism

Modern society provides so much abundance that it is easy to get addicted to the accumulation of things.

Hoarding is a uniquely modern phenomenon where the compulsion to accumulate possessions reaches debilitating levels.

A happy life requires all of the stuff you need to be comfortable, and some stuff to have fun with. But beyond that any additional accumulation promises diminishing returns.

Creating personal strategies to counter the materialistic urge is a necessary prerequisite to finding happiness in a capitalist society.