I see no response but :Tja, only you can answer that question.

What do you do with DS? What version of Poser do you "have"? What will P11 add to your toolset?

Set yourself a "goal" and see if you need P11 or not?

I do not use DS and find P11 very nice to work with, and I do not ever use SuperFly. (THE big selling point for P11)