I believe there are very essential things in the Manual also that allot are using it, especially if they go a little deeper into matter ! Or plan to create there own assets. If not reading it you might never find out how to really use IKs or what the Chain Break Tool is used for How to group things or simply creating a Figure in the Hierarchy Editor. The manual contains an incredible amount of information on how to use Poser and can help an artist to have real fun with Poser .

Well if they do not change allot in Poser 12 compared to Poser 11 there will not be allot to update but if there really are new features and updates , things that have been removed , replaced , like the Pyton engine there sure would be the need for a good update else you just search for things in Poser that do not exist.