The concept of postal density conveniently expresses the cost consequences of both multi-address buildings and multi-address kiosks.
Muli-address buildings and kiosks incur postal cost consequences.
But think about  if rate increases are implemented in January---which the Service has indicated is likely---and the Service's best estimate from just this past July is on target, the Postal Service should be sitting on a sizable cushion at the end of this fiscal year.