In the past, one could buy a 400 CD or DVD changer for a few C-notes.
Why can't we have this technology, except with a BDXL or other high capacity Blu-Ray drive? This isn't rocket science, as the autochanger mechanism has lasted for decades in a lot of people's homes before they put their collection on their computer. Sony does have it, but it is priced into the stratosphere.
Putting the pieces together, it wouldn't be surprising to see the autochanger mechanism in many audiophile hi-fi cabinets still usable, add in a 300GB to 1TB Blu-Ray writer, add a few TB of SSD as a landing zone for data, then add some backup software like NetBackup. This would give tape a run for its money.
Now, add some form factor like disk packs (sort of like the 5-10 disk caddies that were popular way back when), some redundancy (basically one disk with a PAR archive on it), and it would have the ability to function almost exactly as tape... but for far cheaper. To boot, removed disks take up 0 watts of power (other than environmental), not to mention being immune from remote tampering.
I just wish this type of solution can hit the consumer market.
But what would people store in it that they can't on a multi-TB hard drive?
The only thing I can see is huge movie collections. But, we have Netflix and cloud storage for that.
Family photos, videos and other such files are not big enough to warrant such a thing.
If you work produces large files, it is valuable and might as well store them in hard disks because compared to the labor costs, the cost of storage systems is negligible.
The only people who want low cost storage of 99% fluff throwaway data are companies like facebook and google who trawl the internet for data and never delete anything.