To airbrush or not to airbrush

I'm writing this while I'm waiting for my nail polish to dry. My family and I are about to head out to New Farm to get some profesh photos done--my Christmas present for them. I've been thinking about the airbrushing aspect. These photo people are good at making the photos look natural, but... is it cheating/lying to airbrush? To what extent should we change ourselves?
The founders of Verily Magazine have decided to include photos in their magazine of women without altering the model's body or face structure. They said that "The unique features of women, whether crows feet, freckles, or a less-than-rock-hard body, are aspects that contribute to women's beauty and should be celebrates-- not shamed, changed, or removed".
My question is, where is the line? Do these "unique features" include pimples? I mean, chances are, my skin will get clearer soon anyway; it's not as though it's an intrinsic part of my appearance.
I watched an interesting TED talk the other day. The speaker was a model, who explained that the photos that were taken of her were a creation and do not reflect her as a person. She said, "These pictures are not pictures of me--they are constructions."
Also, I've been reading a memoir (I won't say which one), and the author talks about a scar on her face, and how she's getting wrinkles, and various other things. But in the photo on the cover, she looks utterly perfect--no scars, no blemishes at all. Although, to her credit, she does have the horse-ish face structure she was complaining about (no, it's not Sarah Jessica-Parker). Maybe the scar is just hidden by the light, or maybe it's not as pronounced as she's making it out to be.
I know a girl with a scar near her mouth, left there by a dog attack when she was a child. I think this scar adds character. I'm not saying that in the way people say something's "interesting" as a code for "that's the ugliest thing ever". I truly think this scar adds to the girl's beauty. I would be disappointed if she ever airbrushed it out of a photo.
I'm not particularly worried about this photo-shoot with my family, but this issue of how much to change yourself has been bugging me. As long as the photo still conveys the essence of the person, I guess it's okay. I know that's kind of a vague answer, but hey, I just raise the questions. Maybe you'll come up with your own answer.

My nail polish has dried. Time to go.