Here’s the thing you are missing - That invoice is roughly the equivalent of putting a new crate motor in at a dealer. It’s the absolute most expensive way to fix the problem.
The vast majority of EVs sold in the US are still under their original powertrain warranty due to the federally mandated warranty duration. As in-use vehicles age out of this warranty in volume the aftermarket will fill the void just like they do today on ICE vehicles. There’s little money to be made right now in this space, and the place where there is demand already has aftermarket (look at the original Leaf as an example of this).
Almost nobody puts a new motor or transmission into a 100k mile daily driver vehicle, and almost nobody will buy a new battery at a dealer for an equivalent EV. These catastrophic failures are rare in modern ICE vehicles, and are also rare in EVs.
Just like in ICE vehicles an EV that suffers a catastrophically expensive failure will still have value (and realistically, the battery is the only such repair on an EV).
In short, owning used vehicles is a gamble, it always has been. EVs will be no different.
Viper GTS