I think that cgi helps to create great battle scenes and other movie tricks that could have not been done before. However I do see both used in the harry potter series which is a great mix
of the two. But harry potter is the best example of how great computer effects can add to a movie. anaconda however does not!
However......... I still miss the freddy kruger type effects that we don't see too much anymore
another great award winning example
the classic days of special effects
Wait! one other movie just came to mind the haunted mansion
good ol' rick baker, keeping the old special effects alive