To me personally the worse Case scenario is with CGI is what i would call the "george lucas syndrome" not using cgi in believable or realistic ways or adding to the creators palette of creative tools, it equals overall lazyness and actually allows that. The story suffers because you spend way to much of your budget building up these cg sets and environments, characters and spaceships and don't focus on the most important part the actors, the story or the human element. All they are showing is the amount of money they spent and the efforts spent on it. The effects should be used to help propel the story forward. I hate movies that are all special effects and zero plot, after all A special effect without a story is a pretty boring thing.