Because to make a 2 terrabyte server out of Sata or SCSI youd spend WELL over $20,000. I already checked into it, and my Fijitshu drives are 300 gigs a piece and spin at 10k rpm... They cost $700
Pentium4 3.2 gig is actually FASTER then some of the Xeons out there, dont be misguided by a name.
Read here.
http://www.tomshardware.com/cpu/20030811/
Especially this line, its about as "non technical as you can get"
"
"In the end, the Opteron, with its comparatively low clock speed of 1.8 GHz, managed to put the Xeon with 3.06 GHz in its place for various server applications. "
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"The current Xeon, codenamed "Prestonia," is similar in structure to the Northwood core of the P4 and has additional registers for multiprocessor capabilities. However, the FSB speed has its limits. While the P4 can work optionally with FSB800 (real FSB speed of 200 MHz), the Xeon has a maximum speed of FSB533 (real FSB speed of 133 MHz). This means the bandwidth between the processor and the chipset in the Xeon is significantly limited, compared to the P4 "