It's $65 per, more or less. Individually, they sell on Newegg for $64.99 to $69.99. If you found Caviar Black drives (their perfomance version) at this side for $40, buy some! The best price that I found on Pricegrabber is $64.84, 16 cents lower. I see a Caviar Blue in that size for $50, but it's a less-expensive line.
Thanks my friend, I was thinking since I saw some for $42 it's a rip off but it's model difference so thanks