While they are not used for every client super high res cameras are just cool technology if you are a fan of pixel peeping. Lots of people have watched too much CSI and these cameras can give the closest experience to "TV magic".
It is likely that because of the super high resolution any camera would use photography lenses which would add to the cost and bulk. They would likely be Sony E mount lenses which skew expensive. The lenses we tested with the Sony SNC-VB770 were in the $1,000-$2,000 range.
This sensor is becoming popular in astrophotography because of it's low noise, high sensitivity, large size, a 16-bit A/D, and the fact that a mono version is available (in addition to the color version). Thus far, only two Chinese companies offer it in an astro camera (ASI6200 from ZWO, and QHY600 from QHY).
I'm not sure where the noise complaints are coming from, these are showing to be very low noise and dark current. Maybe they are shooting at very high ISO.
Also, in astro cameras, the pixels can be binned which will result in smaller file sizes (and correspondingly less resolution). I don't think that security camera vendors think about pixel binning, but that would add versatility to any camera. For example, it could switch to high resolution mode when motion is detected and then drop back to 2x2 or 3x3 binned when no motion is detected for a period of time.
Would like to know how this would fair in a shootout with Avigilon and Hanwha. Testing each at 30MP setting. I would assume Avigilon would come out looking favorable since they are end-to-end with their own VMS and not new to 8K Video Surveillance. Would also like to know if Hanwha or Sony have any key differentiation.
We currently don't know of anyone using this sensor for a surveillance camera and Sony has stopped making branded surveillance cameras, but that is a good idea when a 61 MP camera is made with this sensor. We have observed fewer of the issues with high MP cameras when using end-to-end systems.