breastfeeding also has short and long term health benefits for the mother too. I cant remember exactly what they are but worth looking that up.
I think breastfeeding is so hard to establish, but once you cracked it, it makes life so much easier and cheaper. not that womens time is free, but mums typically end up doing most of the feeding anyway, and it takes more time to bottle feed if you include all of the prep etc. We co sleep, feed to sleep (look up hormones in breastmilk for helping baby and mum sleep), feed for any bumps or falls etc. My baby is 11m now and looking back, the times where it felt all on me was very short. Yes in the beginning you can't really leave them, but it doesn't last long. I could easily leave mine for several hours at 4 or 5 months without a bottle.
To prepare for breastfeeding, I think the best advice I can think of is to do plenty of reading around the subject from good books and websites. Some good books are the positive breastfeeding book, the womanly art of breastfeeding, dr jack Newmans guide to breastfeeding, breastfeeding made easy. especially read up on normal breastfed baby behaviour (it is different to what society expects), and be ready for people to try and tell you it isn't working. its an odd world, before birth breastfeeding is pushed at all costs, then after baby is born the slightest issue with feeding means everyone is saying to give a bottle! another thing I found helpful was trying to separate feeding from everything else, not every problem is a feeding problem (again people will try to tell you that the problem is because you are bf, and if you gave a bottle it wouldn't happen!)
but ultimately if you are well informed, you are in the best place to make your decision.
another good source of general baby info (mostly feeding and maternal health related) is Amy Brown. she has several books, has a website and Facebook page. her books breastfeeding uncovered and informed is best are fab.
hope this helps!