[asdff]

Nothing comes for free, so what's the profit angle to do this? Government is the obvious customer, but that would leave a papertrail too if such deals were worked out especially asking for perpetual storage until the heat death of the universe.

[HDBaseT]

The cost comes from your tax. Surveillance has an unlimited budget.

You can store an ungodly amount of data if you convert everything to metadata, e.g store a face picture for a short period of time, create a hash to match against other faces in the database. Same with license plates.

Using the metadata alone could effectively completely track your whereabouts.