I pumped for my first for 6 weeks and then bottlefed formula.
I nursed my 2nd until she weaned at 15 months.
I nursed my 3rd until he weaned at 2 years old.
I'm nursing my 4th now...he is 6 months old. He will wean when he's ready; I'm in no rush.

I breastfeed because I'm lazy and cheap. LOL. I bottlefed my first and know that it was lots of dishes, measuring and mixing. And cost me $100/month! I nurse because it's free and there's no dishes.