At the risk of being flamed....
I don't pretend to be a knifemaker, but I have taken a few (maybe four) through the full process, from pattern on paper to finished knife.
By the time you add cost of materials and other stuff that has to be done right, like heat treating, the cost of finishing a single knife is somewhere in the area of sixty to one hundred dollars. It depends on how thick the stock is, what kind of handle material you use, and so on.
So, for a one-off, $175 is pretty reasonable.
Now, Todd Begg is a top-shelf maker, with the ability to realize some economy of scale by using his own heat-treating ovens, and his helpers. So his cost per piece is not as high as if it was one guy making each of these.
So, let's say that the cost per piece, out the door of Begg's shop, is fifty dollars, and let's use the high end price of two hundred dollars. That works out to a twenty-five percent markup.
A twenty five percent markup is not bad.
I'm not saying that there isn't a "halo effect" associated with some makers' names, but that seems to be mostly on the aftermarket. I understand that one seventy five to two hundred seems like a lot for something so simple... but it's not outrageous, either.