The differentiation between consumption addiction and luxury addiction makes it clear that not every excessive buying tendency has the same psychological and sociological roots. While consumption addiction often results from an internal deficit, with the act of purchasing serving as a short-term reward and compensation strategy, luxury addiction is more closely associated with status symbolism, social distinction, and identity construction. This chapter analyzes the underlying psychological mechanisms of both phenomena, including the relationship between materialism, self-esteem, and social recognition. The role of social media and the digital consumer space is also examined, as these significantly intensify the dynamics of consumption and luxury addiction.