FWIW, even while bfing, my arms (heck, my whole body) was 'tied down'. I could never figure out how to nurse and go about my merry way doing other stuff. In some ways a bottle is more freeing. Someone else (even an older sibling) can help feed the baby. Aunts, uncles, husbands, visitors.. they can all help feed the baby.
And the initial 3 months would be much easier... it is was really tough for me in the beginning learning to nurse her every hour. With 2 other kids to boot.. I would have been incredibly exhausted. I know breast is best for baby but you have to consider what is best for mommy too. Ultimately, a tired, frazzled, stressed out mommy is not much good to her kids, ykwim?