Attached Link: http://www.vrayrender.com/gallery/

I can't speak for the other engines I mentioned, but Vray (at least) calls itself a Raytrace engine, and is always referred to by everyone as one. Or more specifically, an Advanced Raytrace engine. So I tend to agree with them on that formality. hehe. ;-) By the way, I certainly wouldn't expect Bryce to adopt any of these renderers as part of their package, since as you pointed out... it would spike the overall cost of the software, and completely alienate it from their base consumers.