WOW! You are getting some great responses. These moms have some great experiences and thoughts. But since every mother and baby are different, I'll add my thoughts too.
I have three kids. My first baby, a girl, was born with jaundice. She was not extremely ill, but she was required to be in the nursery rather than my room. Therefore the nursing became difficult and the doctor put her on formula. After leaving the hospital, I tried to nurse but my milk supply never truly came in. So I pumped and fed it to her through a bottle along with formula. What I learned was: 1. I should have been more forceful with the doctor. I wanted to nurse and I should have done everything I could have to make it happen. 2. I tried 3 different pumps. The first two I purchased and they just weren't enough to get a good milk supply. By the time the 2nd one broke, I discovered my insurance company would have bought me one, had I asked for it. I got a Dr.s note, and the insurance company bought me a wonderful pump that was great. 3. No matter what pump you get, it is not going to do what a baby can do. The baby nursing directly from the breast is the best for the baby and mother.
My second child: I started nursing and struggled. She had trouble latching on and I was sore. But a nurse gave me wonderful advice. She said, "As a parent you will teach your child many things. The first may be how to nurse well." Also, my friend said, "Commit to nursing for 6 weeks, after that decide what to do, but at least nurse for 6 weeks." I took their advice and kept at it. My second daughter nursed for 14 months and used a bottle only two days due to illness.
My third child is my son. I started nursing and struggled again. It hurt and caused bleeding, so I stopped. He had formula from 6 day old until switching to whole milk. He is healthy and a normal child.
If you choose to nurse: then nurse. You can overcome each struggle with patience and support. And be sure to give yourself and the baby time to learn how to nurse comfortably.
To save yourself money and stress: check into medical insurance paying for a pump and also check into WIC. The WIC program is available for mothers and infants whether breastfeeding or not.
You can do this. You'll do great.