Nikki-I really think it depends on how you feel about it. I don't think I could donate mine only because I wouldn't be ok with some little kid running around that looked like me and I would never meet, but that's just me. If you think you would be ok with that, then why not? You get money AND you get to help someone else out...nothing wrong with that. I mean, I can speak from the donor recipient side of things (sperm in my case, not egg lol) and I can say that we are VERY grateful that we have options out there. We are very lucky to have a good friend donating to us, but even if we didn't have him, we would have other donors or the sperm bank. You could end up really helping to make someone's dreams come true, cheesy as it may seem.
Would you want to be involved in their life at all? Is that even an option? I know with sperm banks you can choose donors who either aren't involved at all or you can choose someone who is willing to exchange info when the child is 18....
In the end, it's really about how you feel about it and whether or not you would be ok with it.