Mine have not been done, 35k on the clock one owner. Never had a belt go on any car owned so not really to worried. if it goes bang so be it. Spare engines are cheap to buy. If you have the budget that is!
I'm kind of glad it's out of my price range as my wife had set her heart on it but I've a bad feeling about it for some reason? He told me the belts hadn't been done which is a little odd if the car has been looked after!!