According to my notes we paid a total of $17,650 for our wedding in 2012, including absolutely everything - rings, dress, reception, cake, etc. However, we received ~$9,500 in cash gifts, so net is $8,150. I guess you could count the value of the non-cash gifts too, not sure how much of that we would have actually bought though. According to the calculator, if we invested instead we would have an additional $14,233 now. Probably still worth if for the tax-advantaged status ;)
We also read that MMM link before we got married and would have loved a $10 wedding. Unfortunately that would have led to my in-laws never talking to us again, haha. Oh well, I would say we still only spent a third of what they would have wanted.