I went here with my dad while he's in town. I highly recommend a trip to this museum. The area 51 museum is a bit gimmicky, but...ALIENS! There is plenty of information though about the recently released info on area 51 in 2011.
When you go, plan about 2 or 3 hours at least to see all the information that is presented. There is plenty of info, whether you're an auditory or visual learner. There's also many interactive stops along the way. There's an immersive video experience that makes you feel like you're watching an atomic test. Well worth the money.