La Cornue's CornuFé 110 is a luxury range typically purchased for design, craftsmanship, and multi-oven flexibility. Given the high replacement cost and the installation complexity, repairs are often justified well past midlife-especially for mechanical components like valves, thermocouples, and thermostats.
Replacement becomes a consideration mainly if the unit has extensive corrosion, repeated safety-related gas issues, or if major electronic controls repeatedly fail and parts sourcing becomes slow or unpredictable. Because owners often value the aesthetic and fit within a custom kitchen, repair decisions also depend on preserving matching finishes and avoiding remodeling disruption.
Use the threshold as a sanity check, but also consider that "replace" may involve cabinetry, flooring, and ventilation work that raises true replacement cost.