No more bidding wars among governments. Then there's no reason for a company to come knocking at your door. That doesn't mean it would be easy. They help communities dream up incentive programs, then bring them clients to collect the incentives. A lawsuit to have incentives declared unconstitutional.
Legal scholars believe the practice violates the Constitution's commerce clause.
Indeed, the Supreme Court has said as much in several cases. In 1977, for example, the court struck down a New York law that provided for lower taxes on securities transactions processed by brokers in New York. The state pleaded that it needed the tax break to keep brokerages around. The court didn't buy it. Even groups that usually oppose federal oversight of local affairs are calling for it in this case.