Here is another interesting quote from George Lucas. It can be heard on the Return of the Jedi 2004 DVD audio commentary. During the infamous Jedi Rocks scene in Jabbas Palace he says this:

I’m still amused by people that somehow think that when you use cyber technology or digital technology in movies that suddenly it’s fake. But when you look at the scene in here like Jabbas palace. Now there are some digital characters in here, but they are no more less fake than all the other characters are in here. Is a digital character more fake than a big fat rubber character? (laughs) I mean there is nothing real here at all. And it’s hard to say that a rubber character has more integrity than digital character. What i tried to do is make the characters become believable. So they look realistic enough to where you have a suspension the disbelief and accept them as characters, not as tricks. Which is what they all are.

From a philosophical stand point he might be right: cg or rubber - it is a fictional character, hence not real. But Lucas totally undermines the visual quality of both tricks. A rubber character looks more believeable than a CG character, due to his physical nature. Amazing how Lucas, who calls himself a filmmaker, fails to realize the crucial argument why his PT cg characters always got ‘meh’ feedback than his OT rubber characters.