I just returned from a Vegas trip. I have quite a few pics on my twitter (same name as here), but a few things for here:
Personally, I loved the Tim Burton exhibit. We've been to the Neon Museum/Boneyard before, and I preferred no guided tour, because you could spend as long as you wanted on what you wanted. It was also our first time doing it at night, so that made a big difference to us. It did help knowing beforehand that the Tim Burton part is small, but there is some nice detail, and you really have to keep your eyes peeled. Some of the pieces were intentionally placed to blur into the regular exhibit. Our personal highlight, a life-sized recreation of the Betelgeuse sign, was semi-hidden, and we saw a lot of people just walk right past it without realizing it (even though it's on the exhibit map).
One big surprise that isn't listed: throughout the exhibit, they have viewfinders, and be sure to look into them! It was also enlightening to return to the first room of the sketches after viewing the rest of the exhibit... they way it's structured, it's the first thing you see, and they're design sketches for the rest of the exhibit, which doesn't make much sense at the time. So go back and view it at the end, and you'll appreciate it more. On the outside "bar scene" exhibit, makes sure you sing into the microphone for a visual surprise. Even if you're vocally shy... turns out the microphone is a decoy, so your actual voice isn't broadcast. We did skip Brilliant, although we haven't even seen the regular version, so we do need to do that one day.
It was also just announced the Tim Burton exhibit has been extended to April 12 (it was originally going to close in mid-Februrary).
Visited again to the Twilight Zone mini golf at Bally's. It's doing surprisingly well, it's been around for two years and the staff informed us that the management just came in to touch up all the artwork. It looks great, and the staff is really friendly. Be sure to take a look at the event room.
Also made a second visit to Zac Bagan's Haunted Museum. Even if you're a skeptic (the staff seems pretty earnest in their beliefs), the decor and atmosphere is pretty incredible. It's long and expensive (90 minute guided tour, about $45), but worth it. Not a haunted house, it's more of a tour/demented museum of alleged haunted objects and possessions of serial killers and celebrity deaths (though there is a very short scare/haunt section about 75% of the way through, but don't go just for that--you'd be disappointed, it's all of 2.5 hallways long), and the set design is out of this world.
Next day, did the Springs Preserve and State Museum, which is huge and I easily spent 4 hours there, could've done more. They have over 3 miles of hiking trails and gardens on site. Separately, went to the Mob Museum downtown, which is also surprisingly good--4 stories, and quite detailed. That was another good 2 hours of my day, so you could have a full museum day just between the two.
Big news for here is the state of Desperado/Buffalo Bill's. I visited on a Monday, so I expected Desperado to be closed, as I've heard it's only open Fri-Sun. It was, and the entire casino was virtually deserted, yet open... it was a bit creepy. Desperado was indeed closed, but I was able to snag a pic of its (and the log ride's) current operating schedule.
On a side note, Area 15, the new Meow Wolf installation, isn't open yet (it was supposed to be). Latest news says they'll be open for private events and previews in Jan/Feb, but not a public opening until May/June.