What a discussion,...I think the fact that there is finally some integration with apps like maya, c4d, lightwave,...etc.  That is my 1st reason to go with the pro version.  Distributed rendering - ohhh how I've wanted that for some time, but I still wonder how well poser will manage scenes with a great many objects (so-so, as far as I can tell at the moment).

The thing is about poser is the UI - I can get stuff done FAST in poser, and when I mean fast, I mean aesthetically-fast as far as the model is concerned.

If you are a hobbyist, don't get pro, why would you need it anyway?

If you make money with poser like I do, then it might be worth it - especially for the built-in integration with renderers other than Shade (I just hate the Shade UI, hate - hate- hate)!