Thanks to Delta screwing up flights, I might be in Las Vegas a day earlier than my planned 3/9-12 vacation. I called the Mirage, where I'm staying and they want $195 for that Saturday, 3/8. I'm thinking about using Marriott Points for that Saturday. Any recommendations? According to the map, there are some properties by the Convention Center. Thanks in advance for the tips! Also, is the Cosmo worth the 40,000 points for a room?