Why am I only attracted to pretty girls?

Why don't average girls turn me on>? I would be able to date much more. Why do I have such high standards and why am i super fiscal? I am a good guy, good looking and smart. I should be more into smart girls, being smart, but I am not! I don't get it. It's like a girl as to be a model to turn me on. I am so super fiscal. How do I stop this? My standards are WAY too high. I don't want to be alone more whole life because of my insanely high standards. Pretty much I have found 4 or 5 girls in the past decade...that is a really low amount. I now I am kind of narcissistic, though I don't show it around people. What do I do to accept an average looking girl who is kind, smart and fun?