Do you have a reference for that? Cold engine starts cause a lot of wear, but warm engine starts should cause very little wear, especially in an engine designed for start stop.
While a home light bulb may not stand up to continuous on/off cycles, a bulb that's designed to do so (like a low-voltage bulb with a heavy filament) can last for a very long time.
So I wouldn't retrofit an existing car with a start-stop system, but I wouldn't have any qualms about purchasing a car with a start-stop engine as it would have been designed for the purpose.
http://www.autocar.co.uk/car-news/new-cars/stop-start-long-t...
While a home light bulb may not stand up to continuous on/off cycles, a bulb that's designed to do so (like a low-voltage bulb with a heavy filament) can last for a very long time.
So I wouldn't retrofit an existing car with a start-stop system, but I wouldn't have any qualms about purchasing a car with a start-stop engine as it would have been designed for the purpose.