In 1900, Paul Drude made a groundbreaking advancement with a model to describe the electrical conductivity of metals. Over 120 years later, his model remains widely used and featured in most introductory textbooks. Drude developed this model shortly after the discovery of the electron, during a time when the precise atomic structure was still debated, the Pauli exclusion principle was unknown, and well before Fermi-Dirac statistics. In this discussion, we focus on the assumptions underlying Drude's model, mainly the choice of the electron mean collision time, analyze the physics it employs, and evaluate how well it fits experimental results of Ohm's law, both for static and time-dependent fields. We also explore the insights it provides into thermal effects and briefly address how quantum effects can be incorporated. Overall, we highlight why Drude's achievement is a remarkable success story that merits thorough examination and admiration.