After a long weekend in Vegas, you have three choices at the airport:
1. You can continue playing slots and booze at the airport. Maybe you were lucky and want to keep that winning streak alive, or you're trying for any last hope of snagging a few bucks (and your dignity) from the city. The booze part cures the drinking-all-weekend hangover.
2. You can people-watch. Everyone walking off the planes is excited to get deep into the Vegas fun, while those waiting to leave have an obvious grimace and likely a massive hangover. And probably a large dent in their bank account.
3. You can take advantage of their free Wi-Fi and get all of the work/homework done that you put off due to incessant boozing and abuse of your hard-earned cash. You're going to have to make up the lost money somehow, eh? The party never stops.
Bonus is that the airport is easy to get around, but better to get here early since the security lines can be quite long and, after a few days in Vegas, it's probably best to get there early and GET OUT!