I agree to this post heavily. I always say to fellow writers, after speaking with chagrin, about the books that i see at book fairs people want to read or like to read. If your genre or style is away from the readers, then you are in trouble. Now, I am not saying you have to write to the readers. many books were wrote and will be written where the theme or genre or style is against the financial tastes. But, if money is your primary concern, then this post repeats what you need to hear.