That is true as far as using Daz IP content goes but Daz Studio is free period and to explain in full what it can do would take about as much time as it would to take to explain all of the things one could do with say Blender or 3ds Max.
{in_general_mode}
What one would be paying for is a license to use Genesis as a parametric character modeler that is state of the art as far as production quality goes but there are low cost or even free alternatives.
An example.
Free but of course it always comes back to licensing as to fair use.