I agree Nissan and Renault are both fighting a losing battle to hold back the tide of change. After market batteries for cellphones are often better than the genuine product, and the same will very quickly be true for electric car batteries. Small independant shops will pop up with clever young people happy to sell you a new battery pack and pehaps a firmware hack.
This leaves dealerships in a bad spot. The are currently enshrined in law in the USA, and watching many or most go the way of the dodo will be traumatic for lobbiests.
As for stealerships, I agree. The Mazda dealership I worked at had almost all the work done by under-trained apprentices with insufficient supervision. I once watched a new car with steering alinment issues come back four times because the tyre-fitter was crap and the stealership got paid again every time. Much of the profits of the shop came from getting nearly an hour of unpaid overtime from every apprentice every day. For a dozen apprentices, this adds up fast.
The sooner I can order my car on line and have it arrive in the post, the happier I will be. Electric cars are wonderfully low maintainence, with a converted Prius being my favourite. I have seen the future, and it runs on batteries.