the son of the sultan of brunei ' one of the world 's richest men wed bride dayangku raabi'atul .
the lavish display of wealth is possibly the most opulent wedding of all time , but the couple are n't the first too say i do at a ceremony costing millions .
even stars like kim kardashian and elizabeth taylor , who have a string of failed marriages behind them , continue to spend a fortune of everything from their wedding booze and location to their dress .