If I began the surgery route it would have to be a very long work in progress so I would never begin what I couldn`t afford to finish. I reckon if you have one bit done, then you become more dis satisfied with other bits and so it begins.
My local hairdresser/beauty salon offer botox and fillers and I once asked whether they had many people interested in it and she told me quite a few have regular courses of both. That would scare me because they aren`t medically trained and both treatments can go badly wrong.
One of my ex colleagues nearly lost her life after having a tummy tuck and has never been able to work since and is totally disfigured. She had the op in Poland and came home after a few days only to be rushed into hospital when her scar became badly infected, a hole began to form and she was seriously ill to the point she almost died. She`d contracted a kind of flesh eating bug. Around the same time a footballer`s wife was in the news after a similar incident had happened to her.
Major surgery is ok for medical reasons, the risks are worth taking for the sake of good health but IMO they`re not worth taking for the sake of vanity.