It depends what you count as a casino. I grew up in Las Vegas and there's slot machines in most grocery stores and gas stations. Also the airport has slot machines. If that counts as a casino then there's hundreds if not thousands.
I've never been to Vegas, but I've heard more than one person express surprise at how much more city there is besides the casino strip? No idea if that'd make up for the casino density on the strip
There are the BIG casinos, which only take up a finite space, but there are also little casinos pretty much everywhere you look. Even gas stations will have slot machines. That's true of most of nevada, tbh.
Not just Nevada, any state that legalizes VLTs soon becomes plagued by VLTs (slots by any other name are still slots) put into every existing building. Gas stations, bars, strip clubs, convenience stores, etc, everyone gets slots/VLTs. Bonus is that any empty building gets purchased and filled with them since nothing but gambling survives despite the surroundings. Illinois is my main example here as my home state, I canât spit without hitting a slot machine itâs ridiculous