I've seen great dynamic hair. Such as Stew's rat fur.

People are just starting to tap the power of the Hair Room. Unfortunately, the dynamic hair that comes with Poser isn't ideal, for a variety of reasons. But people like Stew, Softriver, and Kirwyn are really finding out what the Hair Room can do if you "grown your own."

As for Poser Artist...if you don't need dynamic cloth and hair, consider DAZ|Studio instead. It does almost everything P4 does, and it's free, at www.daz3d.com.