I have never leased a car before, but this is the first time I'm considering it.
I'm worried that the Leaf could be a difficult car to sell between private parties. The potential buyer won't have the benefit of any tax credits, or a free charger installation.
Instead of just handing the keys over, they would either have to buy a new charger, or arrange to take and install mine. And they would have to do this quickly to keep the car running. I'm not really sure how this would pan out, or how many willing buyers there would be for used vehicles.
Even if it's just perceived/imagined, the diminished battery service after 3 years is more than an ICE. I can't predict how much.
If I can pre-negotiate a selling price for 3 years hence, that's worth paying a little more for the car now.