Western Digital working on a 20,000 RPM Raptor

[m^2]

The storage technology is the same: magnetic. Sequential access is obviously not suitable for general use. And no, they are not much bigger than HDD's. The largest tape is also around 1TB.



Do you have an argument, or do you just not like the word "always"?

To magnetize a unit of material will always be cheaper than to produce a unit of flash memory. Both benefit from Moore's law.

I don't like the word "always".
Statements that use it are always wrong.
And, as mentioned before, tape drives was meant to be always cheaper than HDDs. Technology advances + scale change made it wrong. This will be the same.