Well at least Miki has gained some wide level of acceptance; she has more 3rd party support for stuff than any of the other "odd" figures out there.  I really remains to be see with Antonia, I'm suspending my judgement.  If she becomes as popular and with as much support as Miki (and there is a lot of Miki content out there if you look for it) I'd consider her to be a resounding sucess.  Apollo really started out well--I'd say it was more due to problems that the creator had with various 3D entities that his success was not ongoing.

If everyone just gives in and says that they can't live without Daz content, not only will new figures not get off the ground, but there will be far fewer choices.  Lets face it, people get tired of using the same model (no matter how versativle), and wants new stuff to play with.