People need to learn that Badspot wouldn't update to a random $100,000 engine, it would most likely be Torque 3D, which is only $1000. I have played around with the Torque 3D demo, and it has some pretty good graphics(as in able to handle more ploys), a good map editor, and this physics plugin thing that has physics objects you can interact with(as in walking on top of them, getting crushed by them, etc.). It will take a lot of effort, and might cost us another 20 or 30 dollars, but I think it might be worth it.
Besides, BL runs on like, the first torque engine.