I guess I'm more of an artist, and not even a 3D artist. I'm more focused or written word art, although lately I'm trying to get my hands (or fingers) dirty with some visual art as well. From my point of view there is art i choose to share freely with the public and there is some art i prefer to sell and earn money from. The line between the two depends greatly about the kind of things i want to share and express as opposed to the case where I use my technical expression skills for the use and unterest of others (and expect a reward for it). The case that you describe sound to me as if someone would tell me i shouldn't publish my short stories on a free web site because they are damaging people who try to charge money for the same quality of writing. I think you expressed it right, there should be enough pie for everyone. It should be YOUR choice. If you made your models to help others and make a change in the world (help others produce better art) than you should keep them free. If they were only a technical skill, than I think you better start charging money for them :-) In any case, I think the wrong thing would be to take your models away and hide them. (but again, I'm a bit of a political artist, so i'm very sensative to any kind of censoreship or a violation of the freedom of expression :-)