It would take entirely too long for me to transcribe this so just head to about 4:40 in this video and listen to Geoff Dyer's fantastic account for a wonderful minute or so. The entire panel is worth watching - both days.
Short and sweet:
"However bleak and miserable looking the world was, it would still be more interesting to go out there and document it than it would be to do this kind of art photography of stacks of film".
- Geoff Dyer