> The problem is their battery life is ~10 years max

Depends on how you define "life". I think for the Leaf, it's 70% capacity. But even if it gets down to 50%, it'll sill keep driving.

Also, what's really annoying, is that every seller factors in tax credits to their price. So that 3k may really be 5k. I'm actually looking forward to that no longer being possible.