The whole metrosexual phenom, for my money, is a blessing for us. Anything that encourages the GM pop to accept using cosmetics, wearing more colorful, luxurious garb, and otherwise breaking from traditional notions of masculinity can only help stealthily promote acceptance of all people who violate traditional gender rôles... meaning, basically - us!
I don't give a tinker's damn whether it's trendy; as long as it means we get fewer dirty or puzzled looks when we do nonmasculine things, it's all to the good.