There's a fine line between improving boobs and destroying boobs. Not that it matters, but my vote is that you don't let a knife anywhere near your body for any reason.
Apart form reconstructive surgery and procedures for medical reasons, plastic surgery isn't for me. The same goes for botox, fillers and other procedures done for cosmetic reasons. I don't care what other people do, but I wouldn't date someone who had or wanted plastic surgery for cosmetic reasons. PS: I'm with Asmodean on the trying not to judge people thing. Unfortunately I'm good at spotting/noticing when people have had something done.
I dont like pain, and I dont have money like that, so I would probably never go through with it, but if it were cheap and easy I would get my boobs done..