Also, p4merge is the best merging utility for any VCS, and I always install it alongside git if I work in Windows.
What makes it "the best" ? Honest question, i found it kludgy and settled for Kdiff3.
Enterprise volume licenses. It probably cost them less than the time/money they'd lose if you spenta few minutes trying to figure out how to open some file sent by non-devs.
Nice graphical tooling and sane developer experience.
Perforce integrates very nicely with a whole bunch of third party tools in a way git does not, and is on the whole a lot easier to use for most people than git (and I'm saying this as someone who doesn't like Perforce at all)
Said as someone who likes perforce. Having hundreds of developers working with large binary files was incompatible with git until very recently.