They spent more because they could and, yes, they would spend even more if less money were withheld from their paychecks for the personal income tax. But they wouldn't spend 100 percent of the savings.
Another talking point of the tax debate is that an income tax cut or elimination could be partly offset by ending loopholes and exemptions. We doubt the people will see the taxation of previously untaxed items — even if it means lower income taxes — as anything other than an increase in sales taxes.
Which, by the way, would continue to be assessed on groceries in this state.