Yes about 350,000 extra people and 1/4th will be driving from CA.
2 nd biggest holiday besides new years so be ready for tons of people and weather 106-110 that weekend just to let you know .
Have fun and if you drink don't go outside much unless you take in lots of water, people fall like dead flys from now till end of oct who visit because they drink the decide to walk the strip, then they end up in er room with iv to replace fluids.
Have fun and break the bank
Eric