It's still human intensive to actually make. Also, when nearly every scene has something that was cgi it really adds up fast.

I'm sure even with the advances we have seen that the costs have not dropped even slightly for a per hour like break down for rendering anything.

In fact this space is such a hot bed for rampent price gouging, hedgeing against the movies production, shell companys as standard opperation procedure to absorb and off set potential losses, the fine fucking print is almost illegible... Its surprising any money is "made" anywhere.