"If you export then import the dress you'll have a dynamic version anyway" It takes a lot more than this to make an item dynamic in a way that is realistic and useful. Cloth grouping, paramaters, pining and so on all contribute to making it look like a real item and not a bedsheet IMHO. The thing is that it gets a little tiring to pay for something and then have to rebuild it to get it to support the features of the current, shipping version of the software it is built for. In the end it comes down to that Daz has decided not to support P5, and that means there is room for another vendor who decides to step up to the challenge of actually using the features of the program.