Is it worth the money to buy a breast pump when I'm unsure if I'm gonna breast feed?

Brandi
I'm 35 weeks along, gonna be a stay at home mom and will try to breast feed but of course I'm unsure on how it's gonna go. Is it worth buying a pump if I'm just gonna be at home all summer anyway? Especially since they are so expensive and I'm unsure of how it's going to go anyway.