First and foremost, electric cars have much lower fuel costs compared to conventional vehicles. While still not as ubiquitous as gas stations, public charging stations are becoming more popular all the time. In fact, charging stations surpassed 15,000 in 2017, and are expected to keep growing as the demand for fuel efficient vehicles continues to rise.
Outside of fuel savings, you can also quality for federal tax credit and state incentives when you buy electric or hybrid vehicles. Not a bad deal, considering electric cars produce literally zero tailpipe emissions.