I gave up lots to breastfeed my babies. I gave up being selfish, thinking only about myself. I gave up overindulging in alcohol and fatty foods with no thought to my health. I gave up sleeping peacefully every night. However I don't think I could have avoided giving up any of these things by not breastfeeding, it was a natural extension of being pregnant for me. IMHO motherhood requires a lot of sacrifice no matter how you parent.