Low mileage used cars don't come with a warranty, or probably have a more limited warranty if they're CPO.
Leases can be better, but again they are usually better choices in high depreciation scenarios (like luxury vehicles or EVs, as you point out), not low depreciation scenarios.
> Also electric cars get killed on the depreciation curve.
I have heard this a couple of times now, and I believe it. Is the cause battery wear or pure demand (buyers don't want used EVs for various non technical reasons)?
In California, at one point, you could get a few thousand rebate, if you were in the Central Valley, and additional few thousand rebate. Some local cities gave rebates on top of that, and the federal tax rebate on that. Buy a $45k Model 3 and get back $13k-$15k just for buying it. Rebates like that are going to play havoc with resale values. On top of that, new Tesla's went down in price over the past several years. I think as these incentives taper off we'll see more of a stable drop off.
You're throwing large amounts of equity away every 4 years.
Also electric cars get killed on the depreciation curve.