With or without adequate surge protection on the service?
they probably last 30-40 years or the first bolted fault.
When is your next butt kicking thunderstorm?
That seems a bit flimsy, but is that how things are made these days?
I've stuck some of the GFCIs here with multiple bolted faults (some intentional, some not
) and they don't seem to be all that worse for the wear... they're a bit less sensitive, but they still trip within the margin of safety.
I would agree on the surge protection though... I've seen some very heated discussions on other forums about about the effectiveness of surge protection systems, so many cases being cited of the surge protectors themselves being disintegrated.
There isn't much that one can do to mitigate a strong, direct hit!