I don't find all the Poser models ugly.

A lot depends on the textures as well as a few good morphs.

As for content, I make content, both free and retail, for the Poser people. :)

But I have no answer as to why some models can't be purchased outside of Poser.

Let me introduce you to my multiple personalities. :)
     BluEcho...Faery_Light...Faery_Souls.