[xenadu02]

The BSDs are not an aside. You'll also find macOS hanging out in the FreeBSD family tree.

The days of paying vendors massive sums of money for an operating system are over.

[zero_one_one]

To clarify - I agree the BSDs are keeping Unix alive, however separating BSD from those Unixes with System V roots which are starting to wither and die is the point I was making - hence the (BSDs aside) addendum.