"
There must be some restriction to offer an incentive to buy."

yeah, distribution.. in the license you'd not be allowed to distribute your files in anyway, not for free, not for commercial, not even for people to look at. that way the only purpose of using the software is to figure it out and possible get better at it. Also i do like lightwaves idea, the only problem is that if you do it that way, you can only check out so many options because it takes a certain amount of time with a model to see when you need to do something. As far as the games... there really is no excuse... the only thing i could say is those that download old games that you cant find as easy in stores have a small excuse, but not really that good of one.w