Quote Originally Posted by Shintai View Post
Tapedrives are also much bigger than HDs....Yet HDs replaced those
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.

Quote Originally Posted by m^2 View Post
"Always"? Bold statement. I highly doubt it.
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.