Sir,
You clearly know a lot about this issue so thanks for you for responding. I have my music on an 8 TB HDD, not a solid state device as something is spinning around inside, all of which in my experience are prone to failure. You mention that SSD's are not suitable for long term storage which is curious to me as inherently they ought to be more stable than "regular" spinny HD's.
I take your point about streaming music service and have been a long time Tidal Hifi users, but I have 5.5 TB of SACD jazz files which cost a fortune which I want to keep access to and back up securely. I can get a well reviewed 8TB SSD for about the same cost as Backblaze cost of their annual cloud storage cost so that seems the proper route to take.

