whats happening, is that with limited production capacity they manufacturers are only making the bigger drives - those they can make most money on
My usual supplier at present can't purchase any desktop drives of less that 1TB!
There do still seem to be a number of smaller sized laptop drives in the market at more sensible prices though
As for the Western Digi comment - you must be joking, or else you've found someone with a stockpile. They've lost around 70-80% of their production capacity.