Er, scanned expressions won't get you 100% the way either, at least none of the productions I've heard about have managed to do that. I think I've mentioned this to you - ILM, Digital Domain, Double Negative and MPC were all using Mova's system to get their expression scans, but these movies from 2012 all started…
That's efficiency. CD Projekt does not need a permanent CGI staff for the 1 trailer per year maximum that they need. Platige does not need a scanner for the occasional project that involves creating realistic humans (they work primarily in commercials). All 3 companies specialize, and do that type of thing better than a…