Poser 6 only. I used to have more version installed, but never used them. If I want speed I just render with P4 render engine in P6. I haven't noticed a speed difference between P5&P6 at all, so for me no need to keep older version at all. Just a waste of space and time loss due to switching back and forth between version.

I'm still on P6, I still don't see the added value of P7 at all. I'm still not convinced that I want to spent $129 on some minor updates I may never use. Most of my work is still rendered with the P4 rendering engine, so most of the new improvements are of no use to me. Also I'm able to render scenes with 20 figures or more in P6 already. So for now, I'll stick to P6.

Artwork and 3DToons items, create the perfect place for you toon and other figures!

http://www.renderosity.com/mod/bcs/index.php?vendor=23722

Due to the childish TOS changes, I'm not allowed to link to my other products outside of Rendo anymore :(

Food for thought.....
https://www.youtube.com/watch?v=pYZw0dfLmLk