Good question. We hadn't considered it from that angle.
And sure, freebies, while they don't exactly proliferate like they used to, are still extant in the Vegas firmament.
While the free circus acts at Circus Circus are the granddaddy and the Mirage volcano has been erupting on schedule (weather permitting) for 30 years (plus the 20,000-gallon saltwater aquarium behind the Mirage's front desk is still a cool attraction), the two biggies, in our humble opinion, are the Bellagio fountain shows and conservatory.
There's also the Lake of Dreams at the Wynn, with its lights, holographics, 40-foot waterfall, and pine-topped, as seen from various locations around the hotel.
And speaking of the Wynn, you can now enjoy the free experiences without having to pay for parking to do so.
Then there's Viva Vision, the light shows of the Fremont Street Experience, plus the free concerts on the stages along Glitter Gulch. Also downtown is the free 6-by-8 glossy framed photo with a million dollars at Binion's, one of the best souvenirs in Las Vegas history. And at the other end of the Fremont Street tourist corridor is Container Park with its giant fire-breathing praying mantis.
A selfie at the "Welcome to Fabulous Las Vegas" sign is perhaps the most iconic free thing to do here.
The 117,000-gallon aquarium at the Silverton casino is worth a special trip, especially when the mermaids are in action and the marine biologist is feeding the denizens of the deep.
We've always gotten a kick out of the "Fall of Atlantis" animatronic show at the Forum Shops at Caesars, with its nine-foot-tall talking statues, giant winged dragon, fire and water, and 50,000-gallon aquarium.
Let's not forget to honor the free parking at the Venetian/Palazzo, Tropicana, Treasure Island, Planet Hollywood, Circus Circus, SLS, Stratosphere, and Hooters.
Likewise are the free tram rides between the Mirage and Treasure Island, Bellagio and Park MGM, and Excalibur and Mandalay Bay.
Of course, fine art (including original Picassos at Bellagio and contemporary street art at the Palms) is on display in free spaces everywhere. We've always been fans of the hand-painted ceiling between the lobby and casino at the Venetian and we love the M.C. Escher-like optical-illusion tiles on the floor.
Mystic Falls is the indoor park at Sam's Town with trees filled with bird sounds, animatronic animals, and a waterfall; laser and light shows take place every other hour between 2 and 10 p.m.
Out in Henderson is the free self-guided tour of the Ethel M Chocolate Factory in Henderson, along with the four-acre Botanical Cactus Garden outside.
We're sure there are more. What free Las Vegas attractions and freebies have we forgotten or overlooked?
