The wedding cost like $250 total, the food for the party cost $150. The wine for toasts and such cost us $40, other people through in up to $160 of wine. The cake was made by a family friend and paid for by another as our wedding present, so cost $0.
My wife and I spent more when we got an Xbox 360 than on our entire wedding. We are having another celebration this summer as my parents couldn't visit at the time and a lot of my wifes family couldn't get out to Ontario either, so the total price of our 'weddings' would probably have gone up, but again everybody is offering to do and pay for stuff so the total right now is at like $10.
I think the worst thing anyone can do is spend like $50,000 on a wedding, it'll just ruin your first year of marriage. I think the next worst thing, is to actually think living together married should be different from living together unmarried. My wife and myself got married after being together for years, it was because we were already committed, not because we needed to commit.