You know what, if you don't take this too seriously, it's actually a lot of fun. The seance opening of course is corny, it's supposed to be! Are people expecting an actual seance in Vegas and on a bus tour no less?
The guide was engaging and was having fun, which made the group have a good time. You get your money's worth on this. The bus takes you all over town and you get to hear some interesting stories and a bit of Vegas history. The best part is that it's only a few hours and you still have the rest of the night.
Plus, if you like old school dive casinos, you'll love the Greek Isles. It's a dump in the best sense of the word!