Technology addiction is a relatively new, but important, concept that has not yet been well integrated into mainstream IS models. This study bridges this gap, and integrates technology addiction and technology adoption in the context of online auction websites. The findings of an empirical study of 132 eBay users indicate that addiction to online auction websites augments user perceptions of the usefulness and enjoyment attributed to the technology, which in turn influence future usage. Post-hoc analysis further indicates that addiction is not a proximal concept, and as such, it affects future usage through key system-referenced perceptions. Implications of the findings are discussed.