Are there ANY men with manners left???

Why is it that when a woman sends a message to a guy on, say Yahoo personals, he can't be bothered to send a reply back, even to say that he isn't interested? I'm a good-looking 34-year old white woman from Houston, Texas, and not 1 guy bothered to respond to my messages! Are there not ANY men with manners in Houston? IM me please if there is.