It's never fun to do it by yourself. It's good to have other people that are on the same path as you. It's nice to have that in common and be able to converse with them. It's cool to share that.
When I'm sculpting, I work with wood and clay, and though some say that an image is already in the material and the sculptor just has to discover it, I also believe you have an image in your head that you're trying to get to. So you're in a dialogue with the piece, a back-and-forth.