Yes. But flash is still expensive, and mechanical HDD’s are prone to failure
A 1TB Violet Ray will be viable in 5 years - if they take 5 years to get it to market.
But I agree with your reasons.
I’ll also add the following:
When CD’s came out, they were 30x the average HDD.
When DVD’s came out, they were 1x the average HDD.
When Bluray came out, it was 1/10th the average HDD.
When Violet Ray comes out, will it be 1/30th of the average HDD?
Optical media is falling well behind other technologies in capacity and speed.