In the early days there was an organic quality to CGI that was both interesting and impressive.
When Tron first opened in 1982, it created a primitive but captivating world set inside a computer generated universe. There was something so bizarre and interesting to the look and feel of the film that set new standards for cinema.
Nowadays, the point of CGI is to try and recreate reality as closely as possible, which in my opinion is such a boring waste of a great tool. It's a shame that CGI has replaced everything; Sets, make-up, costumes, creature effects, pyrotechnics, props, and even actors.
Good old-fashioned prosthetics can never be replaced by computers- just look at the photo underneath:
The first is a clip from the brilliant children's film The Neverending Story, which was made before CGI took over the industry. Take a look at how realistic everything looks- there is nothing phony or cheesy looking about this sequence.
Now, on a final note, observe Rob Bottin's excellent make-up for the swamp witch from the film Legend with the computer generated Gollum from The Lord of the Rings. When you compare the two, you can really see just how pathetic this so called photorealistic junk really is.