As a user of both programs I realize that we have little to limited say so, but I'll add this for what it is worth anyways. Daz Studio is free and it runs Daz content without all the bells and whistles Poser has and Daz provides a nice bundle of content with it. It's a great marketing tool for Daz and like someone else said it opens a door for beginners to get their feet wet in 3D without spending a lot of money. Daz Studio and Poser have to go in their separate directions in my opinion simply because they are different programs and they have different features even. However successful Daz Studio becomes remains to be seen, but it's obvious to me it's gaining popularity and it's still in it's infancy. Daz has out marketed the owners of Poser because Daz makes content and they provided an application that will use it for free.

Poser on the other hand has entered into the content arena. They make money now off of both ends(selling Poser and 3rd party content along with their own) and could easily provide a platform for their content free of charge to the public same as Daz does. They provided Poser 5  free for a limited time, but if you want to be the master of both realms then provide a platform and pay for it with the content sales and club memberships. They have Poser 4 or they can just provide Poser 5 and maybe even redo Poser 5 so that it runs better or even give it a new look(strip it of all the bulk content for bandwidth's sake), but end result is keep up or get the heck out of the way.