Personally i believe that Satoshi do deserve nobel prize for his work.
Indeed, Satoshi deserves at least one Nobel prize for his work.
But there's a "logistics" problem. Satoshi's identity is not known, even more, the world is full of Satoshi impersonators/wannabes. And I would not be surprised one of those will try to go to get the prize. And such development has the potential to end up badly for both the bitcoin community and the organizers too.