Since getting Poser 5, then 6, I have seen no reason yet to go further down the upgrade line.
Poser is essential for the types of renders I like to do, ie. with characters, but I rarely render with Poser anymore.
I love Poser for characters, posing and skin shaders.
Vue for outdoor scenes - terrain, vegetation and lighting.
And C4D because it's so damn stable, quick and flexible with render options.
So I'm left with exporting, importing, re-sizing, re-texturing - quite a chore but very satisfying when you finally get all the elements to shake hands.
Now, if we could get a program to do all these things in one package, it would blow the rest away.
I'm not holding my breath.
A new program called Your All-In-One 3D Solution.