Also consider car dealerships where there is all sorts of special regulation, and even prevention of manufacturers selling direct to the public. (See litigatio

Also consider car dealerships where there is all sorts of special regulation, and even prevention of manufacturers selling direct to the public. (See litigation against Tesla for more details.) Heck in California (I don't know about other states) the sales tax is paid based on the purchaser address, not the address where the sale takes place like for other goods. Or how foreigners aren't allowed to own more than 50% of an airline. For a land of free business, there is an awful lot of protectionism going on.