Honestly, it's not worth the time for me to do that; it mostly sells by word of mouth. I'd rather say, "I wouldn't recommend buying it this way," and let people carry on doing as they wish. I'm not that worked up about controlling others' behavior.
Yes, that was part of the reason I didn't bother with it. I was frankly surprised to see that anyone bothered to list a copy at all, since the market is very small. (Primitive Baptists of any sort are a tiny, tiny fraction of a percent of American Christianity, and the appeal of my book, if any, is to an even smaller subset. But de gustibus non est disputandum.)