A new feature has appeared at smoke shops in Montana, gas stations in the Carolinas and delis in far-flung corners of New York City: a brightly-lit bitcoin ATM, where customers can buy or sell digital currency, and sometimes extract hard cash. The machines have multiplied quickly through the United States over the past year, fueled by a frenzy in crypto trading that sent bitcoin prices over $58,000. Kiosk operators such as CoinFlip and Coin Cloud have installed thousands of ATMs, scouring areas competitors have not yet reached, executives told Reuters. “I just assumed there was demand and people wanted bitcoin everywhere,” said Quad Coin founder Mark Shoiket, who flew to Montana after scanning a U.S. map for bitcoin ATM deserts. During a week-long road trip, he found seven places to install machines, including 406 Glass, a store in Billings, Montana, that sells tobacco, vape juice and colorful glass pipes. As …