Like Eric R says, what can you say about it? It's an airport. But this is a great airport considering it is Vegas. I love Vegas so much, I come here at lesat 6+ times a year. The other 6+ times, I'm driving to Vegas.
Anyways, as you can imagine, there's a lot of opportunities for you to gamble (just slots though) and people watch. You will be amazed at how fun is to watch people at airports. No less the Las Vegas airport b/c there's always something interesting in Vegas.