I'm still too busy being wow'd by the implications of color video and widespread photography. Of my grandparents, I have a few black-and-white's from their late 20's. Of my parents, a couple off-color's from their early 20's.

My decedents (if I have any) will have full, accurate color video and photo from a ton of points in my life.

Forget recording who I was and what I did- it still blows my mind to imagine 'knowing' your parents as they were when they were young. Images are the first step to this; they make the past real.