OK, now this is interesting.
I recently bought a brand new 650D (on sale) for my sister. I know I only took a single picture with the camera, yet it shows 73 actuations. "Well, maybe you didn't buy a brand new camera.", you say, "It's a 650D, after all".
Well, that's what I thought at first ("those Best Buy b*st*rds!"). But I also have a new 70D, which I bought the day it arrived at the store. They are a well-respected seller, I have no reason to believe my 70D may have been used before they sold it to me. Yet, I've shot 3192 pictures and 49 movies with it so far (3241 files in total), but the shutter counter says 3290.
Is it normal/expected/possible that cameras leave the factory with some actuations on them already? Quality assurance testing, maybe? What's your experience?