I've heard a saying: the bigger the wedding, the more likely the marriage is to fail.
It has held true with my friends.  The people who wanted a small, relatively quiet wedding (which still costs $5,000+ from what I've heard), their marriages are still going strong.  A friend of mine spent $40,000 for theirs and the marriage is about finished.  The only thing keeping it up is that they want to have a baby to save it, which is fucking disastrous.  Good luck with that one.