Wow, if Seagate keeps up this trend, someday everything they make will be a U6.
OK. Now that I've given you all nightmares, I have to say that's a really crappy thing to do. First of all there's basically zero market for 7200rpm SCSI any more, and there are plenty of Barracuda SCSI drives out there to fill anyone who might really have that need. The second is "what the hell is the point?"
OK. I'm done now.