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LAS VEGAS — Cheers and long lines of tourists and locals alike greeted the first day of sales of recreational marijuana on Saturday as Nevada became the fifth state with stores selling pot to the public in a market that is expected to outpace all others in the U.S. thanks to the millions of visitors who flock to Las Vegas each year.

Veteran consumers, first-timers, twenty-somethings and retirees were among those who defied triple-digit temperatures before they made it into stores across the Las Vegas area, some of which opened shortly after midnight and later provided free water, live music, valet parking and coveted promotions on their valuable product. Eager employees guided customers and answered questions from product potency to Nevada's consumption regulations.

People wait in line at the Essence cannabis dispensary, Saturday, July 1, 2017, in Las Vegas. Nevada dispensaries were legally allowed to sell recreational marijuana starting at 12:01 a.m. Saturday. John Locher / AP

Minnesota resident Edgar Rosas Lorenzo on Saturday flew with his family to Sin City for his sister's wedding. But even before he checked in to his hotel, he stopped at a dispensary on the Las Vegas Strip.

Lorenzo, 21, said he learned of the legalization of recreational marijuana in Nevada while he was at the airport waiting for his flight to depart. He drove with his sister and soon-to-be brother-in-law from the rental car facility in Las Vegas straight to the dispensary. They waited in line about 40 minutes before he could buy one-eighth of an ounce of marijuana and hemp wraps.

"It was worth the wait. I'm going to come get some more tomorrow," Lorenzo said after paying about $60 in cash at Essence dispensary. "It helps me sleep. I get back pain. I have a slipped disk."

Some dispensaries took to social media to spread the word or tried to draw in buyers with special events. Some gave away free marijuana to their first 100 customers, and at least one entered buyers into a raffle for free pot for a year.

Those 21 and older with a valid ID can buy up to an ounce of pot. As of Friday, the state had licensed 44 dispensaries to sell recreational marijuana. Thirty-nine of those shops are in the Las Vegas area.

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Tourists — 42 million of which stop in Sin City every year — are expected to make nearly two of every three recreational pot purchases in Nevada. But people can only use the drug in a private home as it remains illegal to consume it in public, including the Strip, hotels and casinos. Violators face a $600 fine.

"I have yet to figure that out," Lorenzo said of where he will smoke the weed he got at the Essence dispensary, which along with others had stacks of pamphlets stating the regulations in every checkout station.

Meanwhile, Kristin Deneal got in line outside a pot shop at 5:45 a.m., after a different store that opened at midnight closed before she could make a purchase. She brought a folding chair and sat by the door, striking conversations with the security guard and others as the line continued to grow before doors opened at 9 a.m.

Lucio Ortiz shops for marijuana at The Source dispensary, Saturday, July 1, 2017, in Las Vegas. Recreational marijuana became legal in Nevada on Saturday. John Locher / AP

Deneal, a Las Vegas resident, said she is elated at being able to legally buy the drug that for decades she has had to buy through acquaintances. Smoking marijuana helps her cope with health conditions while also working a stressful job at a bank, she said.

"It looks like they have enough stuff for everyone, it's just a question of getting through the door," Deneal, 57, said.

State Sen. Tick Segerblom, one of the main proponents of marijuana legalization in Nevada, made the first purchase at The Source dispensary at a strip mall. Deneal and others followed. An hour after the door opened, at least 80 transactions had been recorded.

Some facilities are in strip malls, while others, in stereotypical Las Vegas fashion, are in neighborhoods shared by strip clubs. Some dispensaries have ATMs inside because they only accept cash transactions for marijuana.

Lorenzo immediately posted photos of his stash on Snapchat. His friends have said they're jealous and asked where he bought the products, he said, adding that he'll plan another trip to Las Vegas specifically to legally purchase marijuana, not to visit the city's world famous casinos.

Employee Jorge Aguilera talks to a customer at Essence Vegas Cannabis Dispensary after the start of recreational marijuana sales began on July 1, 2017 in Las Vegas, Nevada. Ethan Miller / Getty Images

"We just got here ... Instead of looking around in Vegas, I'm in a dispensary," he said.

In the afternoon, people walking along the Strip seemed to be obeying the state's ban on public pot smoking.

Recreational marijuana sales began shortly after midnight, just months after voters approved legalization in November, marking the fastest turnaround from the ballot box to retail sales in the country.

Hundreds of people lined up outside dispensaries that opened from 12 a.m. to 3 a.m. and had to turn away customers like Deneal. At Essence on the Strip, people were excited and well-behaved as a lone security guard looked on. A cheer erupted when the doors opened.

Despite the limits on where people can get high and restrictions on where the industry can advertise, dispensaries worked furiously to prepare for the launch. They stamped labels on pot products, stocked up their shelves, added security and installed extra checkout stations.

People line up at the NuLeaf marijuana dispensary, Saturday, July 1, 2017, in Las Vegas. John Locher / AP

Nevada joins Colorado, Oregon, Washington and Alaska in allowing adults to buy the drug that's still banned by the federal government.

"I've been living in Vegas for 15 years, and I keep missing the cities that legalize marijuana and edibles. So I'm happy that it's here now," said Babs Daitch, who was waiting in line.