Originally Posted by Xaccers

As with all transpants patients suffer from cellular rejection where their immune system sees the new part as foreign and starts destroying it.
To combat this, patients have to take strong immune supressants, so they are more prone to illnesses, and they are not 100% effective so the new part is eventually killed off. Ever seen someone with a hand transplant? It's not a pretty sight!
So to think that someone with a healthy face would choose to undergo this operation when forms of plastic surgeory are available isn't likely.