klozen, to get back to your earlier question, I think Thromm has the general answer... there's no real reason not to use displacement maps, there's just noone (very few) doing them yet.  If you have skill in creating nice displacement maps, you could probably make good money selling character packages here in the marketplace.

Cinema4D Plugins (Home of Riptide, Riptide Pro, Undertow, Morph Mill, KyamaSlide and I/Ogre plugins) Poser products Freelance Modelling, Poser Rigging, UV-mapping work for hire.