Check out our list of some of the best things to do in Sin City for Halloween this year! The best Las Vegas parties, shows, pub crawls, activities, and open bars! Plus, a new spooky slot machine review and the best online slots for Halloween!   Hello friends, and welcome to this special Halloween edition of This Week in Gambling! And hey, you don’t have to be in Nevada to have fun on Halloween… but it doesn’t hurt! We’ll discuss all the Las Vegas parties and open bars in a moment, but we’re starting our program with a look at…