Every generation of electric cars is such a big improvement over the previous one, especially in terms of range and fast charging, that the resale value of the old ones is unusually low.
This is especially true today because the used cars didn't have that much range to begin with, but I suspect that will still be true when the current 300-mile cars are replaced with 400-mile or 500-mile cars. People want a lot more range than they actually need.
When we end up replacing it, I may consider doing a battery swap instead. The dealer told me that you can swap the battery for about $7K. I'm wondering if it will be possible to upgrade things for a reasonable cost in 5 years time. I've been looking at the new e+ leafs and I think the form factor for the batteries is the same, so potentially you just need to swap out the batteries and replace the power management unit. Whether that's even possible, I don't know.
Either way, if we can replace this car in 5 years with a car made 3 years from now, then I think we'll still be quite a bit ahead of the game compared to buying a new car.
I was a bit nervous about going EV, but it's been a couple of months now and I've had literally no problems at all. Now sure how well it would work in many places in NA, but here in Japan, I've been very surprised about how convenient it has been. Doing our first real road trip next month, though. We'll see how it goes ;-)
For what it's worth I had the choice to pay a bit more to get a different Leaf that had a new battery (replacement under warranty). Given that I don't drive much (6 mile commute), I figured a slightly healthier battery is probably not going to be as useful to me, and the car/battery will deteriorate from age before mileage is as much a factor.