There's a set of projects in an adjacent work group that does not use version control. Instead, they create snapshots at various stages of development (before certain formal reviews). These snapshots are fine, actually they're useful, but they don't replace version control. I had a chance to explain and demo git to one of them, who'd written some 10k lines of code between snapshots, to explain how git could help him manage his work better (easier to try things and roll them back, as the primary one). This helped, he had started to use it though I don't know if it's spread yet.

Fortunately there is no opposition to version control in their group, it's just momentum keeping them from changing.