It's plausible that the beacon need not be directly co-located with the drop, but be near enough. It should also be possible to re-use them for some time. I wou

It's plausible that the beacon need not be directly co-located with the drop, but be near enough. It should also be possible to re-use them for some time. I would imagine that the actual cost overhead would really only be $20 - $30 per active dead-drop location + some percentage for lost or damaged beacons.