I have noticed the programs don't really deviate from their original purpose...much. Poser was created to be a artist's reference for humanoid figures and its (current) functionality seems to reflect that (original) vision - albeit with a powerful material room.

Maya user here - Maya was created to be highly extensible and comprehensive. My point here is that their intended uses are diametrically opposed. I believe that if you really need more, you could "graduate" from Poser into something else. I keep hearing that Cinema4  / InterPoser is the best way to use Poser content outside of Poser - while maintaining the ability to use....modules that aren't included in Poser.