Yeah, sorry if I came off as kind of dickish, looking back my comments were more flippant than they had right to be. Overall I agree with your point and having more monstrous races is something I absolutely want as well.
I have to point out though regarding orcs, if you're going to say that tieflings are humans with horns, different skin colors and maybe tails, then really orcs are just buff humans with green skin and maybe tusks.
