Copies of BSD have been traded at various prices since the 70s ranging from "free, but bring your own tapes" at user groups to a few hundred bucks (about a coup

Copies of BSD have been traded at various prices since the 70s ranging from "free, but bring your own tapes" at user groups to a few hundred bucks (about a couple thousand dollars today) for a packaged distribution with documentation. However BSD was tangled up in a lawsuit from 1991-1994, right as Linux was launched online as a free download.