FYI, I went there with my wife about a year maybe a year and a half ago. Parking was $10 (less if you had a hybrid or electric car). Had I known this I would have walked there from a casino. The price of admission was steep at $19.00 each. I was getting my ass kicked at the tables and my bankroll was dwindling and I just could not see paying $50 for parking and admission to see a mob museum, so we left. They were nice enough to give us our parking money back.
The next time I am in Las Vegas (May 25th baby!!!) I will go only if I find a BOGO free coupon and its not too hot to walk there or the gamboling gods are a little nicer this time and spot me a few bucks to go.
weggie