That's ofcourse a factor also, the newbie factor. :) Wich program is the easiest to learn? I would have to agree that it's Apophysis. While Xenodream on the other hand, also being a flame fractal generator is much more difficult to get used to, not because of the number of features (there aren't that many) but because it takes more knowledge of the program to even create something descent, mostly you'll end up with a dot or a blurr. And there's no demo, perhaps that's got something to do with it. Although I prefer it over Apophysis because you can create more diverse fractals, and because so few use it.