Isn't this a bit of revisionist thinking? I don't know that cameras of that quality were commonplace in 2006. It's not like you could just pull out your iPhone. And most digital cameras weren't much better (i.e. I wouldn't trust being able to read handwriting from their pictures). So then what, you supply each interviewer with a roll of film and a company darkroom?

It's also easier to write your own notes down this way too.