Crowds coming back because only domestic travel is reasonable. It's tough to travel internationally still. Though Mexico has made a tourist push to get folks back to Cancun, Cozumel and the like. Even promising to put travelers up "free" if they test positive pre-return flight.

Crowds coming to Vegas will find much higher food prices and much worse gaming conditions/rules............at least on Blackjack and in the casino restaurants. I'm sorry but whether you can afford it or not, a regular two egg breakfast with meat and toast........nothing fancy........should NOT cost almost $30. (Paris circa Feb 2021)
The greed of operators on the Strip has NO bounds..............LOL