The cost of a vote through traditional ad spending is less than $100 [0]. Moving people can't compete with that. [0] https://www.cato.org/blog/dollars-vote-201

The cost of a vote through traditional ad spending is less than $100 [0]. Moving people can't compete with that. [0] https://www.cato.org/blog/dollars-vote-2016-election https://www.cato.org/blog/dollars-vote-2016-election This analysis gives ad spend as $3-20 per candidate per vote. Assuming only 20% of voters were undecided, the marginal cost can't be more than $100.