The ICO Craze Contains the Seeds of an Open-Source Economy (medium.com)

    Unix was marginalized for years — much longer than a
    traditional company could sustain it — before it became
    one of the core building blocks of modern computing.

IBM, AT&T, Novell, Sun, HP, SGI, and a whole cast of others sez WAT?

I can't think of any time in the history of UNIX you couldn't buy at least a half-dozen flavors from a broad range of vendors.