You're right, but it still sucks that my car now depreciates as fast as my Macbook. I don't think batteries will ever hold their value though, and those things constitute at least $10k of an EV's sticker price.
Hopefully as EVs become less ugly-looking, the body and interior hold their value, even if the value of the battery depreciates rapidly.
If somebody made an EV that looked like a 1980s Rolls Royce Corniche- something tasteful- I would buy an EV.