You should wait till they have a demo out and try it for yourself. Both programs are comparable, Bryce does better at some things Vue does better at others. Vue 4 has a ton of problems right now seems no one is able to run it without bugs shutting it down. Perhaps waiting until a demo is out or until Vue fixes all those bugs. Bryce is rock steady. I would suggest to go through all the Galleries online for both programs check what it is you are looking to do with your art. See which one most suits your style and needs, I personally feel Vue limits one to a certain type of image though it does those images very well it seems to handcuff the artist. I also believe with this new update Bryce will be vue'd :) as a mid level renderer now instead of low end. You will start seeing Bryce renders on the highend websites like raph.com. If you download the Bryce 4 demo Bryce 5 is very much like it, except it has trees and options that enhance its Renders (depth of field, optics, super high ray per pixel, multible undos. (actually when you think of it Bryce 5 is like a refined Bryce 4 with trees). Power and versitility vs. ease of use and speed