Never going to happen.
Last I heard they were losing money on the 120GB and making money on the 250GB?
Removing the HD would save them about $30 probably but dropping the price to $199 would cost them a further loss of $70.
(I could be totally out on Sony's cost's for HD's but I think $30 is probably in the ballpark.)
Unicorns ARE real - They are just fat, grey and called Rhinos