Important Las Vegas updates are here, as a popular nightclub is closing it’s doors in October, and five Sin City resorts are undergoing major renovations! Plus, how can you own a piece of the Mirage for yourself, and a look inside the Sphere at the new Wizard of Oz attraction!  Plus, how you could own a piece of gambling history as the Mirage Las Vegas is holding an auction! In a week filled with significant Las Vegas updates, we begin with one of Sin City’s favorite nightclubs. Closing down. As you probably know, Caesar’s is transitioning their Cromwell resort into…