Have you seen the latest video games? Yeah, they're THAT close.
Yup, have a nice X-Box 360 at the house right now. And huge strides have been made. Huge. But we're still nowhere near technology that will allow the wholesale replacement of human actors. That kind of technology is still at least fifteen to twenty years out.
BTW, I have video production in my background, including early usage of 3D CGI technology. I also have a high-level animator friend at Pixar whom I talk to about such issues.
MM (in TX)