I look down at mine and I'm like, meh. They're just lumps of flesh, what's the big deal? They just get in the way and make me have to wear a stupid bra. Fuck that shit.
When I'm rich I'm going to have top surgery and donate them to someone that wants them.
EDIT: Jesus Christ this has way more replies then it should. We all need to go outside... especially me.
From what my anthro and psych friends tell me it's mostly just due to societal conditioning. Donation might not be possible due to the lifelong anti rejection immunosuppressant meds necessary for transplant recipients though.
:(