Because of seeing my older sister and my sister-in-law make it look easy, discreet, and comfortable - and seeing how happy and healthy their gorgeous DCs are (thanks ladies!)
Because my mum didn't BF us and always regretted it, "shouldn't have listened to that stupid MW who said I had the wrong shaped nipples, no one would help me..."
Because I'm a mammal and we lactate - why spend money on something less good than what I can make myself?
Because I read "The Politics of Breastfeeding" and was determined to stick it to 'The Man' via my boobs (yes, immature, yes, an image that makes me grin).
Because of how easy it is, once you get past the first two months. It's specially easy at night, but during the day I love thinking "ok, got enough nappies? Got a change of clothes for the baby? Got wallet, keys, and phone? RIGHT. Sorted for a day out."
Because of how happy DS is when he sees me offer him a nipple.