This is why, for years after CDs were an archaic distribution medium, the OpenBSD project sold CDs for each release. In almost any company, it's easy to put a software CD set on a purchase requisition, but nearly impossible to make a "donation" to an open source project.

OpenBSD doesn't do this anymore; perhaps they got to the point where it didn't sell enough to make it worth the trouble, since you could download all the same files for free.