They want us on clouds paying for a subscription. Otherwise these cartridges which can hold terabytes and last for 50+ years would be dirt cheap like your ex.
A cabinet like device where it has an arm to change tbe cartridges, and a software/ssd to view metadada, thumbnail, video preview is all a family needs… I think
I want to preserve data but it is hard and costly.
Bonus: imagine if the software would help you pic archival grade file formats and warn you when a file format is going obsolete.
There is a cool software I use called Wincatalog.
Cuckoo out

I think NAS is great for techies but optica disc storage is better option for family memories and stuff.
A NAS need maintenance and can get expensive.
LTO tape take a lot of care, I just read about it again.
It needs proper storage and maintenace and even then it last for 30 years.
Optical media last 50+ years and storage conditions is just normal home climate. I think for childhood memories, important documents, wedding videos is a perfect medium.