I'm thinking the early uses will be primarily video cameras and similar recording devices that need small, easily swappable "drives" that can handle large files. When you're on a shoot, you don't want to keep swapping storage media every 30 or 60 minutes. In our little studio (university setting so not as high end as a pro shoot) we use swappable drive bays in a recorder. Those just hold standard SSDs and can be popped out and plugged into an edit station for capture and transfer. Still not cheap though and ours are typically 512GB drives.
> When you're on a shoot, you don't want to keep swapping storage media every 30 or 60 minutes.
You really should, though. Not in the filming domain but in stills, I've shot airshows in the company of professional[0] photographers who changed their cards for fresh ones after every act. No point losing a whole day's shooting to one bad card.
Apparently this is also common at weddings, though even more so as the photographer might be taking shots of the same scene on two different cameras and then changing cards in both. Just in case.
> Apparently this is also common at weddings, though even more so as the photographer might be taking shots of the same scene on two different cameras and then changing cards in both. Just in case.
More common is the requirement to have a camera that supports dual cards, so you can either write to both cards, or write JPG to one and RAW to the other, so you'll never lose everything.