Hi PJenkins00. Interesting question, and welcome to our forum. Spyderco was the first production house to make black knives ('80's) The first Tigold black pieces were Spydercos. We made them for a number of years.
Essentially, black coatings will eventually come off and cannot easily be re-coated. Everyone likes to buy them, everyone likes to sell them, but no one likes the beefs when the coating gets scratched or worn.
We do on occassion make them. The current Lum Tanto is black. We don't mind making them, but it is close to impossible to make the ELU realize that it IS a coating and will eventually come off.
sal