we were instructed to tell people that the $0.50 for each magazine was to cover printing costs.
Well, the word "cost" by itself can be construed many ways by different people. In fact, by itself, it really means little if anything.
Without more specifics, is "cost" only those direct items such as paper and ink or are we to include indirect items such as machinery, overhead, employee (volunteer) health care, food, transportation, insurance etc, etc, etc, etc.
It really comes down to how one defines "cost."
Since the WBTS is well, a publishing company my name, it could be argued that most expenses for the organization can be publishing-related in one way or another, especially those related to the buildings and similar assets.
While the direct cost of printing a magazine is a cent or less, the final "cost" could be considerably higher.
Rub a Dub