Some of these EVs are dead simple to maintain - are the tires inflated? Did you get the breaks checked? Is it charging okay?
Obviously, if you start having electrical system problems, it can get pricey. Nice to have a warranty of some kind then.
But the same is true of ICE vehicles if you start leaking oil, have electronics fail, and so on. I still remember spending so much time getting a motherboard component replaced in a 1994 Ford Thunderbird that was exhibiting bizarre behavior.
Just had my trusted 2009 Mazda 5 blow a head gasket outside of Santa Fe over the winter break. I'm grieving. But no, I'm not going to buy a new engine for that car and probably had spent too much already on it over the years. Sigh.