The ones who drive nowadays on weekday regularly into Manhattan are mostly those who need to do a job in the city with a vehicle, which likely why you can get the goods you want in the city. This toll won't stop them from entering the city and will only make what people pay more expensive. It could be a fact you are not the group of people who care about that, but for most of the people, they do.

It is just another way to grab funds from private section into public ones, which usually operates at extremely low efficiency and high corruption level.