Aight, lets talk about boob jobs.
My girl has contemplated it too (lift and symmetry), so I've done some basic research:
They CAN end up looking VERY natural. My sister has a friend who had hers done, and um, yeah. They look great.
The ones that I've felt, were saline. They felt pretty real. You could see the scar that goes from the nipple to the underside of the breast, though.
I guess you need to have regular check ups every few years after surgery. They need to check for leaks, and tumors that might form around the implant (!!).
The body is still growing and changing as she gets older, and her breasts will probably need "adjusting" as she gets older - more surgery.
Unless she's had cancer, or a horrible accident that affected her chest, none of this will be covered by insurance.
I dunno, man. I'm all for bigger boobs, but the costs and risk makes me VERY leery. Between the cost of the initial surgery, MRIs, and possible follow up surgeries, risk of scar tissue complications, risks of puncture/leaking, risks of cancer (or missing cancer signs because of the implants), and even choosing a good surgeon, just kind of puts me off.