[chasil]

Unfortunately, there were periods in the past where it did not sell well.

"The bad news is that OpenBSD for the past 2 years has turned a loss of approximately $20K USD ($40K total). I don't think I need to explain in many words what that is doing to our beloved OS, and worse, our main systems architect. This is starting to seriously impede the development of OpenBSD and OpenSSH...

"What I want to point out what a lot of people don't seem to realize is that OpenSSH development is paid from the same pool of money as OpenBSD. OpenSSH is in use by millions around the world however the revenue stream just simply isn't there."

https://undeadly.org/cgi?action=article;sid=20060321034114