Actually  It was very cheap. $5 a copy if I remember correctly   Masscomp and Stellar just ate the cost.  The adobe transcript license was also nominal.  In both cases we realized it was cheaper than trying to keep two separate streams and figure out which systems we shipped it too.  

On Wed, Jan 27, 2021 at 7:26 PM John Gilmore <gnu@toad.com> wrote:
Greg A. Woods <woods@robohack.ca> wrote:
> As I recall even some of the bigger vendors such as Sun and IBM didn't
> offer ditroff in their base OS, but they did offer old troff.  Those
> were the days of insane AT&T licensing and all the games competitors
> played around it.

As I recall, AT&T wanted about the same amount of money for ditroff as
for the entire UNIX release.  So, of course no UNIX vendor was going to
double the royalty they paid to AT&T for every customer, for a small
improvement in a utility that most customers didn't even use (troff).

        John

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