When I take my EV in, it’s for one of two things: I need my tires rotated, or I need new tires. That’s it. There’s no “curtsy inspection” that comes back with literally 40 different things that I could have done to it.
2. Our household has four vehicles: one EV, three ICE vehicles. There’s no way the occasional new tires (rotations are free where we bought our tires) amount to 2/3 the cost of the maintenance needed on our ICE vehicles. It’s probably closer to 1/10.
I think you’re overestimating what all needs maintenance on an EV.