I thought CGI was supposed to make FX work CHEAPER, since you didn't have to build models, light models, film models, etc...
That's a pretty stupid thing to say. The CGI in this film has more detail than in any physical model ever built. Do you think that just pops up fully formed with no effort?
Come on, be nice, it's a common misconception.
In some cases, CG can actually be cheaper, like for big crowd scenes where you only need to hire 12 extras and can duplicate them over and over.