Quote -  If you're selling a "pro" version of a software, but the "Amatuer version is more advanced AND cheaper, why exactly would you want to buy the "pro" version?"

Would be like DS3 selling the full package for $250, and having the free version with everything in it as well. Which one would you get?

P8 is only more advanced in some areas. It can't render in background. it can't render in a queue on other machines, it isn't 64 bit. True P8 will have nice things that Pro doesn't have like the library ("Advanced Library for poser" gives you a nice library now for P7 for free) and things like Gobal Illumination but they will no doubt be in Poser Pro 2.