Thanks for the many clarifications, everyone. It has been enlightening.
Ironically, because i'm in South Africa the only LME I can get which is produced locally (importing from overseas is horridly expensive here) is light LME. So the wider variety in colors and quality is a moot point for me, because I can't get any here.
getting any other LME than the light
So DME it is. Onward!