I see it like this: Peanut butter is delicious. So is chocolate. Both can be eaten on their own, right? And whatever way you like to eat it is just fine. But when the peanut butter and the chocolate get all mixed up into a Peanut Butter Cup ... wow! Who wouldn't buy those -- unless you're allergic or otherwise restricted, in which case you have my deep sympathy. 

Poser and Daz are great individually. But the more cross-compatibility we can get between them, doesn't everybody win?