Question is, how long you've known your oldest friend? And on what circumstances you've met these friends? As a 29 year old woman, do you think you still highly value the friendship of some girl or guy you were close friends with in high school? If so why?
Also do you see yourself making new friends in near or not so near future, as your life situations change?
Do you think you may not have time to maintain a tight friendship with your current friends, if you move away with work or for whatever reason, and would that really bother you?
My oldest friend I met when I was 13. I already don't live close to very many of my friends, but I always put effort into maintaining contact. In fact my friends have been moving all around the world for most of our 20s, it's just something we're used to. We don't consider ourselves to be not as good of friends just because we are not in close proximity to each other.
I'm always up for making new friends, of course. But not to supplant older friends.