The very occassional LED failure, but no more (and probably less) than with old incandescent.
As a 100w incandescent can be replaced by a 10w LED the cost saving is non-trivial. A single 100w bulb used for 5 hours a day = ~1800 hours = 180KWh. At 20p a KWh = £36 pa.
You don't need many of the burning to pay for a tank of petrol, a weekend away, a decent meal out etc. We can all make choices.
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