> SCSI (isn't that what SATA basically is anyway?),
Ehh, ever since ATAPI, both old 'IDE' style as well as SATA hosts could use SCSI commands. The speed you get with a SATA cable, wire for wire, is a win over any SCSI cable I've ever seen, let alone the LVD vs HVD and everything else you had to worry about.
>Firewire
arguably had the right ideas at the wrong time; the extra power delivery is something we are finally now seeing in USB. However firewire was still relatively expensive.
> PCIx
PCI-X was still parallel with lots of data lines/etc which can cause it's own problems. Aside from having multiple cards potentially hamming each other up (PCI-Express this is less possible since it's point to point rather than shared lines) there is the challenge of the large number of traces and the difficulty in running them on a board as the signalling frequency scales up.
>Firewire
arguably had the right ideas at the wrong time; the extra power delivery is something we are finally now seeing in USB. However firewire was still relatively expensive.
> PCIx
PCI-X was still parallel with lots of data lines/etc which can cause it's own problems. Aside from having multiple cards potentially hamming each other up (PCI-Express this is less possible since it's point to point rather than shared lines) there is the challenge of the large number of traces and the difficulty in running them on a board as the signalling frequency scales up.