As I see it's only $200[1]

[1]: https://getlumina.com/

Where do you see that? Their website, plus the linked article, say $200.

What the hell, Who wants a 700$ Webcam ? You can just buy an iPhone at that point.

This is wild. What, how is this justifiable, why would anyone pay that amount when you can get an old DSLR and produce amazing quality video with some tinkering, or get Logi Streamcam or similar for as good quality.