I bought Poser 7 purely because it was on offer for $39.99 and I thought I "might as well...". I wasn't seriously expecting to find much to like, but multiple undos, the morph tool and various other subtle improvements mean I now only go back to P6 when I need to sidestep the occasional P7 annoyance (sundry cloth room malfunctions being top of the list).

There are two approaches to upgrading - those who have to have the latest version "just because", and those who stubbornly cling onto their old faithful until something forces them to move on. Guess in which group I belong. :)