Those who smoke them say they are a better alternative to regular cigarettes.
But others say, e-cigarettes are just part of the smoking problem.
A bill making its way through the legislature would treat it as such. Joey Farrington, 28, has been smoking since he was 12 years old. He says e-cigarettes have changed his life.
"It's kept me off real cigarettes for about two years, and I'm so thankful for that," said Farrington.
But a bill that defines electronic cigarettes as a tobacco product and taxes them the same as regular tobacco products would raise the price of e-cigarettes about 70 percent. So a $70 e-cigarette now would cost $119. That would be too expensive for Farrington.
"It would make me go back to smoking real cigarettes," Farrington said.
The state's largest distributor of e-cigarettes said they would be put at a competitive disadvantage against online distributors.
"It would definitely put us out of business or drive us out of the state," said Cory Smith, owner of Volcano Fine Electronic Cigarettes.
The e-cigarettes are touted as being a better alternative to regular cigarettes, containing nicotine without the tobacco.
"We're wiping out the thousands of carcinogens and chemicals that come along with combustible tobacco," said Smith.