I just spent yesterday (Friday August 22, 2008) at STTE and had a great time. As noted above, they are already dismantling the place. Zek's, The Latinum, and Garak's are gone, so my plan of maybe getting a uniform was unfulfilled.
We got the Behind the Scenes Tour, and the guide, who said this was his last tour, said that all the stuff in the Museum of the Future would go back into Paramounts vault, since they owned that outright. Because of a tangle of contractual and licensing obligations, EVERYTHING else would be destroyed. Including the ships! OMG, so sad. Also sad seeing the notices at the operations desk from the Nevada State Dept. of Employment about where to call for unemployment services.
We had a great time. The rides were fully functional, everything in the museum is still there, the food a Quark's was surprisingly good. The Borg'd bears were the hit of the shopping for the family. And my daughter looked great in the DS9 uniform that she made herself. I'll post pictures on my log entry once I get to it.
I left a baseball. I wrote on it "ST Experience: The ONLY reason I came to Vegas, and the only reason I will EVER come back."