I agree that not all areas should be treated the same. You said "If bombproof food storage is the answer, why not have a few more bear boxes established? Especially along the backpacker mainlines."
I believe if more established Bear Boxes are placed along paths less frequented, that would define more established campsites, in turn creating a new scavenging area for bears to gather. In essence making more areas the same.
IMHO, I would rather carry the extra 30 ounces.