How long does an espresso machine last with proper maintenance?

A well-maintained prosumer machine (ECM, Rocket, La Marzocco, Rancilio) can last 15–25 years. Entry-level machines (Breville Bambino, De'Longhi Dedica) typically last 3–7 years. The keys to longevity: use good water (low TDS, filtered), descale regularly, backflush weekly, replace group head gaskets annually, and keep the steam wand clean. Machines that are neglected for descaling often fail within 2–3 years regardless of build quality.