How does driving your car or truck for free sound?
Very low cost or possibly even free charging will become a thing, thanks to loaning the use of some of your battery’s energy to the utility companies for peak power needs. In exchange, they will recharge your battery for free or at least at a heavily discounted rate.
This is called “Vehicle to Grid” or V2G for short. A few universities working with utility companies are testing this now. If done carefully, it won’t even significantly shorten your batteries like.