Announcing Wolfram SystemModeler 
Oh, wow this is really awesome. Shame I could never use it, since it's out of my price range as a hobbyist. Seems insane they don't offer pricing that covers my use case, especially with stuff like home robotics being such a big thing these days. There's no way I could afford even 1/10th of the $3.5k they want for the full version, and I'm not a student so I couldn't buy the $75 student version. I'd have no problem paying $150-200, just to play around with this.