It is true that for my wife and I, when we first had kids, we took a lot of photos and video. Too much. I sometimes think that we missed out on a lot of events in all the event-saving.
But when my folks passed away, my sibs and I very much enjoyed the old photos and movies, with people that had not been around for decades sometimes.
From what I've read, a ZFS filesystem is very good at detecting and correcting file corruption. Next upgrade I'll be looking at a new NAS appliance that has native ZFS support.
People are such hoarders when it comes to family photos and videos. You are never going to look at 99% of those photos and videos.