I have a car that has 73,000 miles on it. It's been serviced every 3,500 miles, and driven only for a 10-mile no traffic commute, a few long road trips, and never driven over the speed limit. I'm a little sloppy, so there are a couple stains on the seats and a layer of dust on the dash.
My brother has a car, same make, model, and year, that has 37,000 miles. He took it in for the 3,500 mile service because it was free since the dealer sent him a coupon, after that it's never been serviced. It's been driven over pot-holed, over salted New England roads, driven up Mt. Washington pulling a trailer at 35 mph in 1st gear, and driven hundreds of off-road miles. He's a neat freak and has it hand detailed weekly, so the car looks immaculate.
The car with only 37,000 miles must be in better shape, because of the low mileage. Right?
FWIW, I did acknowledge that selling a camera is a time when the shutter count is useful (although technically meaningless). Also, FWIW, when I sold my 5DII, I got the shutter count using one of the many free utilities available, and listed the count in the ad.