Yea good job stevedud. Anyways, I think it's cauze that it's expensive. But you know, he did bring up a good point. Why did they do it? Cauze they don't use multiples of 10 for their drives. They have a 36 and a 74 gigs in raptors...and having 10000 rpm isn't that special anyways. I see drives that run at that rpm and have twice the gigs....but it's 4x expensive.