According to Uproxx a glitch in the MGM’s reservation system caused it to appear that the MGM Grand was sold out, but the MGM said there are a rooms left, but……..
You are going to need some serious cash to book a room now. This is just for a 3 days and 2 nights at the MGM standard room.
If you are looking at other MGM properties, it isn’t look much better.
Read BSO’s Top 5 Vegas hotel deals if you are balling on a budget.