I sincerely hope this is wrong and Intel isn't going down this route again, but look at this lineup recently released:
Note the absence of several extensions on the unlocked K series chips... specifically VT-d. What the hell is the point of disabling that permanently when they are more expensive for the multi unlock? This will certainly make midrange Ivy Bridge silicon undesirable for enthusiasts that can't exactly afford the high end enthusiast parts (ie myself).