Pitch any VC and you'll find certain markets, uses cases, and other oddities that have left a bad taste in their month. No matter how interesting your product, or how much traction you have, they're just not going to go there. This can be frustrating and make you feel like they are being ignorant or bull headed. I even though so, until I recently realized that I get annoyed by every single location based services idea I hear - mostly as a result of having worked on Whrrl. People will tell me "the opportunity is huge" and all I can do is smile slightly, thinking that I know better but there is a no way they will understand, when I ask, "Really, why?"