the sacrifice was worth their TIME??? what about money? wouldn't they have had to buy more IBMs to get the same power, given that the IBMs are single processor units? And how does the price compare even so?
Given their results, it's hard to say the made a terribly large sacrifice. *Maybe* they could have gotten better results for the same money by waiting, but that's always true in this world: if you wait long enough, the power you want will come down and down and down, all depending on how long you're willing to wait. Time was not an option for them, therefore they got the best possible choice. To say they sacrificed seems a distortion of the truth, unless you think they also sacrificed by not waiting until 2010, when something much more powerful might be a tenth the price.