Just like to add that getting married in Vegas is very easy. I married my first wife there.
Went to the court house, joined a queue of other people want to get a license to marry. Filled out a small question and answer sheet while in the queue. Got to the counter and we were only asked to show passports, no other documents. $40 later and a marriage license to marry anywhere in Nevada in the next 12 months.
Walked out of the court house and i could have been married in 5 minutes, there is a queue of limos all waiting to take you straight to the chapel. Very easy, my divorce was a little more expensive.