The Raptor is an expensive drive, hands down. It is a powerful hard drive, none the less, but we see that its performance can be overcome by a simple RAID 0 using two less expensive WD 400GB disks, giving you more than 5 times the storage space as well.
One thing that I thought was left out of this review, was the use of two smaller hard drives, like the WD Caviar WD1600AAJS 160GB hard drive, which they were talking about earlier on in the review. I thought that this review was going to be the Raptor against two of the smaller Caviar drives, which rank among the faster of the 7200RPM hard drives, but instead they chose the more expensive 400 GB drives.
What people are probably looking for in this review is a CHEAPER alternative to a WD raptor, while giving the same, or better performance, and picking two drives that when the price are combined, equal or exceed the Raptors price take the cost-efficiency out of it, and I for one, would not want 800GB of data in a RAID 0.
I think that the review should be redone to include a RAID 0 of the WD1600AAJS hard drive. Half the price and twice the capacity of a Raptor, and possibly a much better performance as well.