Hardware. It's like the Apple model (before they got into services). They sell a full suite of hardware that works great with their software, and they see the software as a way to keep good will, and also showcase their tech well.
They also sell a paid version, if you want a few extra features.
Yep, I was at a broadcaster when we bought a whole pack of their SDI capture cards... the only ones on the market really (everyone else wanted to sell you massively expensive enterprise "appliances") for a very affordable price (I believe they were like 500$ a piece for 4 SDI inputs?).
Also they were first to sell us USB3 based HDMI capture devices that we could take around and do live capture from cameras at full HD for also a pretty affordable price (around 1000$?).
Whenever we needed affordable (semi) professional gear, they were consistently the ones to look at.
> They also sell a paid version, if you want a few extra features.
And the great thing about the paid version is that updates are (so far) free with no subscription bs.
I paid for it once like 10 years ago and still get every new version for free.
Their hardware is deeply reliable, affordable, and you can see that they have super solid software chops.
I made the unconventional choice of using a Blackmagic Micro Studio 4K camera for a robotic application and it turned out to be a not crazy choice - we get our choice of lenses and they have controllable focus and zoom, there's a REST API for the camera (which can connect to Ethernet), etc. To speak nothing of the crisp image. And that I can pick one up in 30 minutes at B&H (in NYC).
Industrial vision cameras can cost ~the same but you'll want to rip your hair out before you get to grab an image (or change the focus - sorry, that's mostly never possible).
Huge, huge fan of Blackmagic. The rock-solid free editing software is just cherry on top.