Personallly I don't see how washing, sterilising and mixing a bottle is easier than breastfeeding Plus you have to pay for it
Anyway, you want to breastfeed, so plan for that. Are you a member of the aBA? I recommend joining and reading the book they send you out - it's a great resource full of useful info and advice. The ABA also does classes which are supposed to be really helpful in preparing you for things.
Don't take advice from people who don't breastfeed. And don't necessarily take advice from health professionals either, unless they're a lactation consultant or have some other specialist experience or training. Unfortunately there's a lot of misinformation around.
As for your nipples - I have no idea. The ABA or an LC might be able to advise you better about that.

I agree that people often seek to validate their own choices in this way. Your choices have nothing to do with them, however.