you seem to draw a clear line between what you think is acceptable and what is not (mass, open, profit-driven surveillance = bad; local, secure, personal camera

you seem to draw a clear line between what you think is acceptable and what is not (mass, open, profit-driven surveillance = bad; local, secure, personal camera = ok), so i'm not sure why you're torn? in any case, that seems to be a good delineation. one further issue to consider is the capture of spaces/property other than your own. cameras should be pointed at your property only, and not used to generally surveil public spaces (legal but icky) or other private property (legally murky).