The best thing is that they offer the whole source as well. That is something you should think of.

I think Gamestudio is on par with Torque from what I saw - when it comes to the engine -- except of some missing rendering effects, a fully programmed deferred lightning pipeline, some PhysX features. Other than that, web publishing and the great editors (at least what I can see) are things which beat Gamestudio of course.

If the source would'nt be included, I would not say that it's maybe worth buying it.

Hell, why do I think of the possibility of making a Torque-exporter to Gamestudio for scenes built with the Torque-World editor??? I'm ill, I think ^^