I know a lot of people around here will say, "stop worrying about it and go out shooting, have fun", but to clarify things, I'm not really concerned about it. I went over to Chase Jarvis' blog today and he's put up a video where he answers random questions. One of those questions he answered is how many shots he's taking PER DAY and he said (at least when on assignment) he's shooting literally thousands and thousands of shots, probably in the ten thousand, so it goes without saying that he's reaching his camera's shutter actuation earlier than most of us do. But for instance our limit is 150,000 shutter cycles, and we hit that, what's gonna happen? Will your camera break down? IQ gets a little funny? What?
BTW, just curious.