SCO was great up until the late 90s when they were bought out and decided to ditch their old version because it was too hard to upgrade it and bought a monstrosity that barely worked. At the time I wasn't really tracking what SCO was doing and assumed it was still a great OS. I took a job working with it and the biggest problem was that it's network drivers were just utter shit. We were doing Y2K upgrades and the OS itself was the problem. I tried to convince them to let me use FreeBSD and of course they wouldn't.

That's why you don't hear about SCO any more. They imploded. By Y2K their products were junk. I saw it first hand. With Linux and FreeBSD out there and free with no licenses etc there just wasn't a market for it any more.