[gotodengo]

Sorry, but you're making a lot of assumptions as to why this person, or anyone would have a large amount of video or photos.

They could be the guy taking photos of their kid's ball game, that parent's know they can reach out to for pictures of their own kid's goals as well. They might have to record regular meetings at a work or club for posterity/legal sake. Based on what they posted it possible they're a pro photog/videographer who is just looking for a better system than what they're using currently.

Take less video isn't applicable to the question at all.

As for my experience I do agree with the keep them on an HDD part though. Nothing beats raw storage capacity for me, and multi-terabyte drives are only getting cheaper. I've got one set for bulk items, and another for backups of anything worth keeping.

The only annoying part for me is remembering to get data off a group of SD cards and onto the harddrives in a timely manner.

[rdiddly]

When answering how and where to store X, the answer should always consider "have less X" as an option or meta-solution, because it makes simpler, cheaper solutions possible and obviates overblown ones. I don't need to assume anything about the person; it's universally applicable. It obeys a power law too. Half the junk somehow gets you down to a quarter of the hassle most of the time.

[em-bee]

for me it comes down to what is less effort to implement. i could probably delete half of my data (got about 5TB now), but doing that would take more effort than buying new harddisks.

[em-bee]

backing up SD cards gets me too. sometimes it's months between backups. usually before travelling i remember that i'd better get the old pictures off, in case i loose the camera or run out of space.