I've been learning Blender since February, and I've just found out about Sculptris myself. I'm currently on disability, and I'm trying to learn 3D modeling in the spare time I have (which is a lot!). What attracted me to Sculptris is that it doesn't look hard to use, and at least most of the models I've seen have been organic in their appearences. I'm hoping to learn both Blender and Sculptris, that way I'd have at least two open-source 3D modeling packages for my hobby. Considering I don't have a lot of money, I'm thankful for these programs.