> How long will the battery be good for?

I average a little under 7000 miles a year of driving.

Based on charge/discharge cycles my EV battery should be good for roughly 20 years.

> Will the savings on gas more than compensate?

At $26k for a top of the line trim, my Bolt EUV cost me less than a comparable ICE car. I'll never save any money on gas, but I don't need to.

Not having any maintenance needs is nice though. Just an air filter.