Rackmount option.
Exactly. Assuming they stick with both single and dual CPU options, it makes way more sense to just use i7 in the single CPU version and only use the xeon where it is needed in the dual. They are different motherboards anyway, it's not like they're using the same one and shipping the base model with an empty cpu slot. Although at this point I don't know if the i7s are that much cheaper than the equivalent xeons any more, there was initially a big difference in price, then that difference went away, but I don't know how prices compare with the new versions.
People who think that the new machine will improve performance over the top end previous generation. You think they will make the next ones a step down in CPU performance? Or will intel have single cpus that can outperform the current dual 6 cores?
Agree with everything you wrote. If they offered a range of processors, Xeon's for heavy lifting and iX for moderate use for those who need an upgradable, headless system, I'm certain it would do very well. How about the Ivy-Bridge EX processors?