> The last part of OP's statement is the key. In a field that's rapidly advancing technologically, used prices are depressed because the new product is that much better than the used product.

And 2 years old EV is not twice as bad as current one

> For example there's another post later in this thread that points out that the Nissan Leaf has been the same price forever - except the current-gen Leaf has literally double the range of the last one. Effects like this depress used prices.

The previous gen is 8 years old. It took 8 years to "double" the quality, not 2