Welcome to Vegas!
It's dry here, takes the body a while to adjust. Get humidifier at home to help keep your immune system working correctly or you'll get the "vegas crud" often! People bringing germs from all over the world mingling at the tables, wash your hands a lot. You'll notice places like Aria usually have cleaner chips than older places on the strip.
I live about 3 miles from the strip on the West side, in a safe little complex, $800/month for 2 bedroom, A/C, Fireplace, Pool & HotTub, WorkOut room. PM me if you want details.
If you do ride the bus, it's $5 for a 24 hour pass, you can go pretty much anywhere in Vegas on that. I make it a point to always save Taxi money no matter what, because there are times you'll play too long and not want to wait for the bus, or when it's just safer to do so, like after a big win in the late hours. I have 3 favorite taxi drivers I use as my regulars, tip them well, and they go out of their way to get me fast service.
The Rio is only busy this much because of the WSOP. Other times, you are likely to find 4 or less tables running for cash games, and rarely above the minimum (on weekdays).
Bill's has the smallest game in town, $0.50 / $1.00 , max buyin $200. Very relaxed & social atmosphere.
Venetian, Bellagio and Aria have the nicest rooms, chairs, chips, service, dealers, etc..
Flamingo, Bally's, Mirage, I've barely played at, but hear good things from fellow poker players as far as fun games.
Planet Hollywood, Orleans, Tropicana, and MGM I've had good success at.
You'll find some places are better certain times of day, and the number of grinders will vary based on what's going on in Vegas. You'll play alongside pros and movie stars even at the 1/3 tables. Game selection = profit. Pace yourself. Breaks are good. Get yourself a group of friends you can talk poker with, this will keep you sharp, and keep you learning, it never ends. If you stop learning, you are falling behind, or about to retire!
Keep posting here
Good Luck and I'll see you at the tables. ~ @TheWookieWay