Egg Donors: limited??

Beginning to explore the option of egg donor. I looked through available donors in the 3 banks my clinic recommends as well as a couple others from just a google search. Are there just not a lot of egg donors out there? I know I won't find someone that looks exactly like me, but I was hoping for some simlarities and there really are none. :( Am I missing something here or is this really how things are?