We always figured if it lasted 30 days it would go a long time. That was for stuff running 24-7, but you get the idea. Components built with tiny flaws die early, good stuff seems to last forever, and everything is engineered to break the day after the warranty ends.It's more or less just curiousity I guess. I've generally sold off cameras before they even reached the estimated shutter life so generally it's not going to be a concern (and a shutter failure is not the end of the world obviously, as it may be $300-$400 to replace, but cheaper than a new $2000 camera). I was just curious though because when it powers on on, it does make what appears to be a shutter opening sound, although it's not exactly like the sound it makes when taking an actual shot (perhaps because it's just opening the shutter, not opening and closing the shutter, when powering on).I would worry more about the MTBF of the electronic components.
And I did that for industrial equipment in a past life.
(Just kidding, a little.)