Replacement is not always the cheapest or most sustainable solution. Conversely, continuing to repair can become unreasonable when a device no longer fits the way it is used.
A good decision therefore considers diagnosis, expected remaining life, availability of parts, energy use, software support and the value of existing data and settings.
When the fault is bounded and repair restores normal function without leaving other major limitations. Examples include a faulty connector, storage device, fan, power supply or battery in an otherwise useful device.
When one bottleneck dominates. More RAM, faster storage, a replaceable network card or a better battery can noticeably extend a system’s useful life. Check compatibility and whether the rest of the system still justifies the investment.
Not just files. Think about licences, browser profiles, mail archives, password manager data, certificates, specific peripherals and software that may no longer be available. Make an inventory before the change.
Yes. Basic repair and Digital are natural practical starting points; where component-level work is involved, Electronics can also be relevant.