Good points, but for those of you who think that SS batteries won't be available until years in the future I think you are wrong. To wit:
https://cleantechnica.com/2020/12/11/solid-state-batteries-theyre-everywhere-theyre-everywhere/
To me the interesting thing pointed out in the article is that the "new" technology can be manufactured on existing equipment. That alone should help bring the product to market much fast than otherwise would be the case. Unlike some changes that can or should happen this one is very important for the auto industry in that it makes the EV a much more desirable product. In my opinion the two biggest obstacles to EV's going mainstream is range and price and SS batteries address both of those. I am very aware that technology is always advancing and it will be the case with EV's as well, however the SS battery is a huge improvement and one that could have a significant effect on the price of an older tech EV.
I don't need a new vehicle but I want an EV so I have the option of waiting. It will be interesting to see how the sales of the ID4 and the MME look next year.
I have never leased or financed a car in my almost 60 years of .car ownership. Leasing is only more expensive if the vehicle holds value and that is the big question with the ID4 and the MME (I mention both cars because I like both of them). Looks like I will be able to test drive a MME before the ID4.