This is a must see for any visitor or local. A gem in Vegas history, for sure. I was rather impressed with the tour guide and her in depth appreciation and knowledge for Vegas culture in general. Great tour!
A few tips: Make sure you are on time. The tour starts right on time and can only fit a certain amount of people. If you're not on time (give or take five minutes) you'll miss your slot as the tour is guided and moves along rather quickly.
Wear sunblock and some shades. An umbrella would be a great option as well. The tour is in a very sunny location, so be prepared. Even though it was hot, it didn't take away from my experience.
Bring you local ID card. There are discounts available and a saving a few bucks never hurts.
Bring a camera! The tour moves quickly but towards the end and at random points throughout, the tour guide encourages to scrap in some pictures when you can.
Lastly, as you've read below, the museum is available for photo shoots. Just inquire in the gift shop and they'll give you all the details!