The car of the future?

Newsweek Magazine states that the cars of the future will all run on electricity. 120 miles and its battery will need recharging? i don’t get it. they are saying that man will give up his love for the combustion engine for an electric engine. to replace a battery now, costs $15,000 dollars. if i bought a new electric car, how long would a trip take from Nashville to Seattle, where all my family lives? how many times would i have to stop for a recharge? how am i going to save money with an electric car? i will just be swapping paying for gasoline versuses paying a higher electric bill to make my car go. I just don’t get it.