Registered version of Terragen is around $80 I think. You can check out the main site from the Terragen forum page. Most use the unregistered version which is free. I hadn't realised it was frowned upon but its probably because of the lack of realistic lighting and a few other things like that. Bryce is great for objects in a scene, rather than the scene itself. Bryce 5 now has good looking vegetation so the complaints about that should die down....Bryce has a bit of everything not being master at anything...just what I like about it!!!!!