All of this assumes that the nightmare logic is what's desired. I was first introduced to Ravenloft with the 2nd ed campaign setting, and a setting is what I liked and wanted. As it was expanded in Domains of Dread and later with all the 3rd ed stuff, more details were added and the setting got better and better. Then the rights reverted to WotC again, who proceeded to retread the original module again and again over multiple editions (mostly), cumulating in VRG, where they proceeded to do the same thing to the rest of what used to be a setting but was now just a series of unconnected nightmare lands, where most of the NPCS are fake and you can't make a difference in the world because everything just resets. VRG is a decent book for what it was intended to be, but it was very, very far from what I liked about Ravenloft. It convinced me that WotC has no business adapting their own settings.