when people talk about CG it is allways a chat about the good old times, or that real effects (what ever it is) look better, but that is not the point of CG, not at all. using CG is a question of money, it is simply cheaper. so if you have endless resources then don't use CG, if you don't have the resources to shoot in thailand then maybe a nice mattepainting will do. or if you can not afford expensive props then maybe CG can help, or if you can not feed 200 extras, then maybe CG is the only way.
so the debate about pros and cons of CG should also include that saving some money by using CG can be used i.e for better locations, better actors, better catering or what ever.