Not always the case - especially in the entertainment industry. Yes, people want to see the greatest creation Universal can make, and that means hard work. But a technology that has proven to be less effective when it comes to creating what you're talking about (IE humans) isn't what they'll use. A Harry Potter AA would just look creepy, that's almost 90% certain. Just because the mouse can do it with Pirates (an attraction created based on the AAs) doesn't mean it's always the answer. Obviously a mix of the technologies is best, but when it comes to people, I really feel that musion/screens are the most effective format to present them in.