Car dealerships. They are awful on purpose. In many places car manufacturers are not legally allowed to sell their cars directly to customers, in order to create what is essentially legally mandated car dealerships, which all suck.
My younger coworker was just super stoaked that he only paid $3000 over MSRP for his new car. They gave him a year of oil changes and undercoat for free though!
Everything I've read said it had very little to do with concern for the consumer. As I understand it, car dealerships lobbied for these laws because, according to them, the manufacturers were being anti-competative and squeezing car dealers out of business. So the laws were passed to protect "small" dealers from big car manufacturers, not to protect the consumers.
But now they use that ubiquity to get higher prices through shady tactics. It needs changed again, this time in favor of the consumer.
A lot of these laws were created very recently. It was a response to Tesla's business model. That was the main argument used this time as well, and it's not wrong.
Disagree. The States will find a way to tax the sale based on destination. The states can move to a different registration/property tax model to recapture the sales tax. See also online shopping sales tax changes.
It's entirely about lobbying by autodealer trade groups.