Spending thousands of dollars on a wedding is absolutely ridiculous.
It's one day and it's over in a flash. Spending enormous amounts of money doesn't make you any more married or even make it any more "special". The most beautiful weddings I have been to are the ones where people understand that it's about the MARRIAGE...it's not about the wedding.
As for it being it the most important day of your life...I don't agree with that, either. It's an important day, true. But the days that come after it aren't any less important. I would say they are more important, actually.