What's wrong with her? Why is she doing THAT?

Natural childbirth, that is. I've heard from countless people who find out my desire to have this baby without drugs that I'm crazy and what is wrong with me. Some have said it straight to my face, while others are kind enough to say those things behind my back. Well, here's my answer.
1. I'm doing it for the baby. The baby will have the best chance of being born safely, quickly, and alert if I do not get an epidural. That is the number one reason I am going to attempt a med-free birth.
2. I'm doing it for me. I'm not super athletic or super smart, I'm a pretty average girl. I'm happy with that. I've never accomplished any big goal I've set for myself. I've never run a marathon, climbed a mountain, won an outstanding award...nothing like that. For me, this IS my marathon. This is something I desire to do...blood, sweat, tears, and all. I have a goal set before me, and I will do everything I can to acheive it.
3. I'm doing it for all of you who think I can't. Is that petty or selfish? I don't care. I almost want to send a big fat SCREW YOU letter to those who doubt me.

If, for some reason, I am unable to complete this task, I will be fine with that. My most important goal is a healthy mom and healthy baby. I will be flexible during labor, but unless medically necessary for the health of me or my child, I'm not abandoning my goal. The end.