At the risk of sounding like a SM salesman...

I have yet to buy an upgrade of Poser that was not worth upgrading to. In each release, especially 8 forward, there were extremely significant feature addions/refinements that more than justified the expense in my mind. And yes... I buy upgrades on the first day of release. I put my money where my mouth is.

I have recently started going through all of my Poser content, and am weeding out/fixing everything that doesn't work right in the recent Poser versions. Most often this is a texture issue and is faily easy to take care of. Another thing I've been looking at is the light sets that came with older items. They are ALWAYS wrong for the current versions of Poser, especially if you use IBL.

Yes, there is a learning curve with each upgrade, but that is why this forum is here.

$.02