Don't even have to set your sail; this landlubber likes likes to shoot videos with a smartphone, and these days, recording a few minutes of a family event, or even your plane taking off, in decent quality, will easily give you a multi-gigabyte video file. And that's for normal videos; $deity help you if you enable HDR.
And yes, this is the universal answer to "how much storage is enough" - use cases will grow to consume generally-available computing resources. Today it's 4k UHD + HDR; tomorrow it'll be 8k UHD + HDR, few years later it will be 120 FPS lightfield recording with separate high-resolution radar depth map channel. And as long as progress in display tech keeps pace, the benefits will be apparent, and adoption will be swift.
And yes, this is the universal answer to "how much storage is enough" - use cases will grow to consume generally-available computing resources. Today it's 4k UHD + HDR; tomorrow it'll be 8k UHD + HDR, few years later it will be 120 FPS lightfield recording with separate high-resolution radar depth map channel. And as long as progress in display tech keeps pace, the benefits will be apparent, and adoption will be swift.