Poser 4 & Poser ProPack is enough for me. I purchase a lot of Poser objects to use in Vue4, Vue 5, & Vue 6.  It's the best of 2 worlds. I don't use the CR2s, just the .obj with textures, so it doesn't matter what version of Poser.

I have P5,P6,P7 - and am thinking about selling them and the associated 'Pretty' books.
What a waste of $...