Orochimaru wanted Sasuke.
Kabuto(maru) wants Sasuke.
Tobi wants Sasuke.
Madara (probably) wants Sasuke.
So tell me - what on god's green earth do you think is so damned special about Sasuke that Sasuke doesn't know yet??
Why do they want Sasuke, specifically?
There must be something we are all missing here. I have a feeling it's something beyond just his eyes.