first of all michi didnt you see 95 - 96? oro said that there was another way to fix his arms so he still wants the sharingan. and guess what it will come to him in the shape of a very stupid kid from konoha named sasuke. second the eye is used to copy jutsus, see fast movement, anticipating movement, see through genjutsu etc. etc. but the jutsu info will be stored in the brain and not the eye. third yes it sounds crazy but it is stupid.
in my opinion it turned more into a orochimaru thread than a itachi thread [img]i/expressions/face-icon-small-tongue.gif[/img]