The other dirty secret of much of digital production is the money that is spent in post to clean up shots that didn't come out very great, or to make ok looking shots better. From what I've heard 28 Days had extensive post that cost just as much as the porduction itself.
I've met Ellen Kuras and her Dv features she said the money they spent on post to clean up DV problems brought the cost of production to the same as shooting film. So when you are watching these film you are not watching what came from the camera, you are watching lots of interpolation, sharpening, and color correction.
Tenolian Bell