License Question and Your Opinion Please

I'm just asking this question to verify the license. Say an individual purchases a single user license and then uses it to make a game. Then they independantly publish it. Do they only need to purchase the $10,000 dollar license after $500,000 sales?

Is that correct?

Also, I know there's no real answer to a question like this, but why are there not too many FPS games made with Torque? Am I just missing them? Poacher looks impressive, as well as some others I can't remember offhand. Anyways, I'm just looking for some opinions as to why.

Thanks.