"Remember my point was that people are paying the price premium with Opteron, so if AMD could launch faster speed grades and create yet another premium bin, they would."
Processor prices tend to rise exponentially with performance so I would think that you'd get more bang for the buck going to multiple processors before scaling a DC by 8%.
I see premium bins in other areas that AMD is taking advantage of. The 81.5 Watt 3700+ is $319 at Newegg. The 62 Watt version is over $500. That's pretty decent money for stuff that's nowhere near the top-of-the line.