Is BSD truly free?
Yes, in all cases except BSDI’s product, you can freely download it from many public FTP sites, redistribute it to your friends (or customers), even redistributing it in commercial products. Various people also sell CD-ROM distributions of BSD (generally for around $40), but what you’re paying for in such cases is the convenient media and fancy packaging, not BSD itself. See the “Where to Get BSD” section for more information on obtaining such distributions.