It's definitely worth spending a few hours downtown...there's lots of history in some of those old casinos. The Viva Vision show runs every 15 or 30 minutes and if you don't like one just wait around for the next one or the next one...you're sure to find something you like. Wander in and out of the old casinos, have dinner at Binion's steakhouse, and take a detour down to take a look at some of the old neon signs that have been restored by the Neon Museum. There's usually live music on the street and some of the most interesting people watching you'll ever have a chance to do!